Add docs for volume plugin ls/get
Add docs for volume plugin ls/get

Signed-off-by: Brian Goff <dc73d0991b982a8303e713ef531a313af77e242a@gmail.com>

alfred-landrum/docker,charleswhchan/docker,trebonian/docker,SvenDowideit/docker,ncdc/docker,justincormack/docker,qudongfang/docker,skatsuta/docker,dnephin/docker,tonistiigi/docker,flavio/docker,DoraALin/docker,thaJeztah/docker.github.io,OnePaaS/docker,djs55/docker,darrenstahlmsft/docker,joaofnfernandes/docker.github.io,gao-feng/docker,maxamillion/docker,joaofnfernandes/docker.github.io,medallia/docker,TrumanLing/docker,sterchelen/docker,cmehay/docker-1,michael-holzheu/docker,moul/docker,jlhawn/docker,jthelin/docker,Morsicus/docker,13W/docker,johnstep/moby-moby,allencloud/docker,HideoYamauchi/docker,Morsicus/docker,ckeyer/docker,bfirsh/docker,tianon/docker,ajaymdesai/docker,mstanleyjones/docker,bonczj/moby-json-file-logger,shin-/docker.github.io,dsau/docker,docker/docker.github.io,mixja/docker,moul/docker,pecameron/docker,estesp/docker,YuPengZTE/docker,unclejack/docker,LuisBosquez/docker.github.io,vijaykilari/docker,kyle-wang/docker,zhangjianfnst/docker,Test-Betta-Inc/psychic-barnacle,ailispaw/docker,bluebreezecf/docker,ncdc/docker,kerneltime/docker,hustcat/docker,anweiss/docker.github.io,mahak/docker,cyli/docker,sanscontext/docker.github.io,rhatdan/docker,jc-m/docker,dmcgowan/docker,HideoYamauchi/docker,lixiaobing1/docker,Tenk42/docker,KarthikNayak/docker,aidanhs/docker,vdemeester/docker,mtrmac/docker,crosbymichael/docker,jongiddy/docker,johnstep/docker.github.io,PatrickLang/moby,splunk/docker,HackToday/docker,anweiss/docker.github.io,gao-feng/docker,moby/moby,mahak/docker,kojiromike/docker,diogomonica/docker,Altiscale/docker,charleswhchan/docker,LuisBosquez/docker.github.io,mathewkoshy493/docker,zhangjianfnst/docker,jlhawn/docker,14rcole/docker,kojiromike/docker,hqhq/moby,dgageot/docker,ffoysal/docker,srust/docker,TrumanLing/docker,HideoYamauchi/docker,projectatomic/docker,hypriot/docker,nalind/docker,anujbahuguna/docker,tklauser/docker,mathewkoshy493/docker,noironetworks/docker,amatsus/docker,rhatdan/storage,ripcurld0/moby,ivansaracino/docker,upmio/docker,sunyuan3/docker,sean-jc/docker,csfrancis/docker,jlebon/docker,yongtang/docker,sanscontext/docker.github.io,erikstmartin/docker,ckeyer/docker,troy0820/docker.github.io,sean-jc/docker,gnailuy/docker,docker/docker,alexisbellido/docker.github.io,JimGalasyn/docker.github.io,icaoweiwei/docker,kimh/docker,Jimmy-Xu/hypercli,mstanleyjones/docker,jloehel/docker,nigelpoulton/docker,docker-zh/docker.github.io,imkin/moby,xiaods/docker,trebonian/docker,dccurtis/docker,q384566678/docker,Ramzec/docker,coreos/docker,sallyom/docker,jvanz/docker,darrenstahlmsft/moby,brahmaroutu/docker,hustcat/docker,Mokolea/docker,errordeveloper/docker,shubheksha/docker.github.io,JMesser81/docker,luxas/docker,shishir-a412ed/docker,SaiedKazemi/docker,skatsuta/docker,mssola/docker,msabansal/docker,JMesser81/docker,cmehay/docker-1,rhardih/docker,moypray/docker,pyotr777/docker,thaJeztah/docker.github.io,TheBigBear/docker,danix800/docker.github.io,geekylucas/docker,jecarey/docker,rillig/docker.github.io,docker-zh/docker.github.io,dperny/docker,rillig/docker.github.io,gnailuy/docker,flavio/docker,skatsuta/docker,achanda/docker,raja-sami-10p/moby,yummypeng/docker,rancher/docker,hallyn/docker,tonistiigi/docker,dongjoon-hyun/docker,kimh/docker,justincormack/docker,PatrickLang/moby,dnephin/docker,BenHall/docker,dims/docker,sanscontext/docker.github.io,cpuguy83/docker,JimGalasyn/docker.github.io,13W/docker,mike1729/docker,shhsu/docker,prertik/docker,twaugh/docker,menglingwei/denverdino.github.io,catinthesky/docker,bdwill/docker.github.io,willmtemple/docker,portworx/docker,Microsoft/docker,arun-gupta/docker,yongtang/docker,jc-m/docker,cnaize/docker,rremer/moby,JimGalasyn/docker.github.io,darrenstahlmsft/moby,tophj-ibm/moby,scotttlin/docker,BenHall/docker,DoraALin/docker,brahmaroutu/docker,ZJU-SEL/docker,Altiscale/docker,mtanlee/docker,danix800/docker.github.io,mgoelzer/docker,dsau/docker,zhangjianfnst/docker,konstruktoid/docker-1,zhuguihua/docker,kerneltime/docker,mike1729/docker,denverdino/denverdino.github.io,alexisbellido/docker.github.io,aditirajagopal/docker,cr7pt0gr4ph7/docker,dccurtis/docker,pradipd/moby,xiekeyang/docker,raja-sami-10p/moby,duglin/docker,madhanrm/docker,charleszheng44/moby,LuisBosquez/docker.github.io,LaynePeng/docker,docker-zh/docker.github.io,swasd/baleno,afein/docker,thtanaka/docker,umerazad/docker,kolyshkin/docker,imeoer/hypercli,yummypeng/docker,Mokolea/docker,inatatsu/docker,DoraALin/docker,troy0820/docker.github.io,gigidwan/docker,jzwlqx/denverdino.github.io,jhorwit2/docker,luxas/docker,SvenDowideit/docker,naveed-jamil-tenpearls/moby,msabansal/docker,coolljt0725/docker,hypriot/docker,YujiOshima/docker,errordeveloper/docker,rancher/docker,contiv/docker,cnaize/docker,pyotr777/docker,scollier/docker,davinashreddy/docker,sdurrheimer/docker,dsheets/moby,isubuz/docker,solganik/docker,BrianBland/docker,ZJUshuaizhou/docker,erikh/docker,nalind/docker,mike1729/docker,kimh/docker,tagomoris/docker,ibuildthecloud/docker,akira-baruah/docker,rremer/moby,rhatdan/storage,anweiss/docker.github.io,qudongfang/docker,umerazad/docker,asbjornenge/docker,yosifkit/docker,x1022as/docker,13W/docker,JMesser81/docker,AkihiroSuda/docker,q384566678/docker,sdurrheimer/docker,joaofnfernandes/docker.github.io,containers/storage,tmp6154/docker,jthelin/docker,ailispaw/docker,moxiegirl/docker,sanjeo/docker,johnstep/docker.github.io,gschaetz/moby,yongtang/docker,JimGalasyn/docker.github.io,Jimmy-Xu/hypercli,nawawi/docker,tagomoris/docker,ibuildthecloud/docker,yasiramin10p/moby,mikedougherty/docker,endophage/docker,sterchelen/docker,runcom/docker,cyphar/docker,moxiegirl/docker,zhuguihua/docker,yasiramin10p/moby,brahmaroutu/docker,icecrime/docker,nigelpoulton/docker,diogomonica/docker,JeffBellegarde/docker,vdemeester/docker,aduermael/docker.github.io,gjaskiewicz/moby,achanda/docker,gigidwan/docker,sfsmithcha/docker,pradipd/moby,BSWANG/denverdino.github.io,jzwlqx/denverdino.github.io,contiv/docker,Altiscale/docker,pecameron/docker,mikebrow/docker,docker/docker.github.io,isubuz/docker,raja-sami-10p/moby,bearstech/moby,dongjoon-hyun/docker,jecarey/docker,hyperhq/hypercli,asbjornenge/docker,bearstech/moby,hqhq/moby,charleswhchan/docker,Shopify/docker,mtrmac/docker,pramodhkp/moby,qudongfang/docker,tpounds/docker,bdwill/docker.github.io,whuwxl/docker,erikh/docker,runcom/docker,endophage/docker,denverdino/denverdino.github.io,kolyshkin/moby,mahak/docker,carolfh/docker,gdevillele/docker.github.io,madhanrm/docker,x1022as/docker,gigidwan/docker,Microsoft/docker,londoncalling/docker.github.io,sallyom/docker,thaJeztah/docker,mohmost12/docker,xiaods/docker,akira-baruah/docker,ibuildthecloud/docker,kerneltime/docker,yosifkit/docker,laijs/moby,icecrime/docker,izarov/docker,hustcat/docker,estesp/docker,gnailuy/docker,thaJeztah/docker,denverdino/docker.github.io,bearstech/moby,thaJeztah/docker,davinashreddy/docker,miminar/docker,medallia/docker,londoncalling/docker.github.io,YuPengZTE/docker,dsheets/moby,icaoweiwei/docker,yasiramin10p/moby,twaugh/docker,ivansaracino/docker,noxiouz/docker,unclejack/docker,nawawi/docker,miminar/docker,darrenstahlmsft/docker,amatsus/docker,Jimmy-Xu/hypercli,sanjeo/docker,rkazak/docker,coolljt0725/docker,mssola/docker,danyalKhaliq10p/moby,aduermael/docker.github.io,johnstep/docker.github.io,Test-Betta-Inc/psychic-barnacle,asbjornenge/docker,madhanrm/docker,BSWANG/denverdino.github.io,rillig/docker.github.io,anortef/docker,PatrickLang/moby,tagomoris/docker,crosbymichael/docker,phiroict/docker,gschaetz/moby,supasate/docker,swasd/baleno,nigelpoulton/docker,mtanlee/docker,hqhq/moby,jc-m/docker,vdemeester/docker,fcrisciani/docker,kyle-wang/docker,stainboy/docker,joeuo/docker.github.io,noxiouz/docker,erikstmartin/docker,konstruktoid/docker-1,KarthikNayak/docker,kyle-wang/docker,jwhonce/docker,jimjag/docker,fsoppelsa/docker,LuisBosquez/docker.github.io,kencochrane/docker,sheimi/docker,rillig/docker.github.io,inatatsu/docker,erikh/docker,fcrisciani/docker,coreos/docker,LaynePeng/docker,kunalkushwaha/docker,denverdino/denverdino.github.io,KingEmet/docker,mohmost12/docker,denverdino/denverdino.github.io,mixja/docker,nghiant2710/docker,xiaods/docker,arun-gupta/docker,Shopify/docker,xuxinkun/docker,contiv/docker,lixiaobing10051267/docker,projectatomic/docker,jwhonce/docker,flavio/docker,coolljt0725/docker,bluebreezecf/docker,nguyentm83/docker,flavio/docker,alexisbellido/docker.github.io,mikedougherty/docker,BrianBland/docker,shishir-a412ed/docker,mbanikazemi/docker,tophj-ibm/moby,catinthesky/docker,denverdino/denverdino.github.io,joeuo/docker.github.io,jloehel/docker,djs55/docker,Collinux/docker,upmio/docker,konstruktoid/docker-upstream,BenHall/docker,liaoqingwei/docker,Mashimiao/docker,kencochrane/docker,resin-io/docker,BSWANG/denverdino.github.io,hyperhq/hypercli,tpounds/docker,ffoysal/docker,izarov/docker,anujbahuguna/docker,zhuguihua/docker,imeoer/hypercli,mikebrow/docker,ivansaracino/docker,stainboy/docker,alfred-landrum/docker,gdevillele/docker.github.io,carolfh/docker,endocode/docker,troy0820/docker.github.io,duglin/docker,abhinavdahiya/docker,shubheksha/docker.github.io,justyntemme/docker,pradipd/moby,endophage/docker,jameszhan/docker,mikebrow/docker,djs55/docker,resin-io/docker,johnstep/docker.github.io,supasate/docker,dsau/docker,sean-jc/docker,wenchma/docker,KingEmet/docker,joeuo/docker.github.io,dgageot/docker,JeffBellegarde/docker,thaJeztah/docker.github.io,mkumatag/docker,jvanz/docker,sunyuan3/docker,ColinHebert/docker,sarnautov/moby,xiekeyang/docker,jimjag/docker,bdwill/docker.github.io,solganik/docker,paralin/docker,nawawi/docker,cpuguy83/docker,sanjeo/docker,maxamillion/docker,miminar/docker,pyotr777/docker,jlebon/docker,fangyuan930917/docker,bonczj/moby-json-file-logger,moxiegirl/docker,anweiss/docker.github.io,amatsus/docker,resin-io/docker,bearstech/moby,shishir-a412ed/docker,LuisBosquez/docker.github.io,gdevillele/docker.github.io,arun-gupta/docker,pramodhkp/moby,rhardih/docker,gao-feng/docker,bluebreezecf/docker,docker/docker,scotttlin/docker,mtesselH/docker,Mokolea/docker,containers/storage,sheimi/docker,danyalKhaliq10p/moby,shubheksha/docker.github.io,lixiaobing10051267/docker,troy0820/docker.github.io,LaynePeng/docker,moby/moby,xuxinkun/docker,konstruktoid/docker-1,coreos/docker,phiroict/docker,YuPengZTE/docker,jhorwit2/docker,eskaaren/docker,fsoppelsa/docker,mssola/docker,geekylucas/docker,mgoelzer/docker,noxiouz/docker,kencochrane/docker,ripcurld0/moby,danix800/docker.github.io,paralin/docker,mtesselH/docker,Syntaxide/docker,cyli/docker,hyperhq/hypercli,moypray/docker,Mokolea/docker,jhorwit2/docker,isubuz/docker,prertik/docker,davinashreddy/docker,inatatsu/docker,denverdino/docker.github.io,liaoqingwei/docker,noironetworks/docker,nghiant2710/docker,trebonian/docker,ajaymdesai/docker,konstruktoid/docker-upstream,mohmost12/docker,menglingwei/denverdino.github.io,mikedougherty/docker,sdurrheimer/docker,rhatdan/docker,JimGalasyn/docker.github.io,dmcgowan/docker,sarnautov/moby,jvanz/docker,docker/docker.github.io,dsheets/moby,pramodhkp/moby,dims/docker,yp-engineering/docker,POLJM242/docker,harche/docker,yummypeng/docker,moul/docker,izarov/docker,phiroict/docker,BrianBland/docker,rkazak/docker,danix800/docker.github.io,bdwill/docker.github.io,prertik/docker,SvenDowideit/docker,ndeloof/docker,ripcurld0/moby,OnePaaS/docker,JeffBellegarde/docker,bdwill/docker.github.io,wenchma/docker,splunk/docker,anujbahuguna/docker,ffoysal/docker,menglingwei/denverdino.github.io,cloudflare/docker,cmehay/docker-1,afein/docker,TrumanLing/docker,eskaaren/docker,fangyuan930917/docker,aaronlehmann/docker,vincentwoo/docker,hallyn/docker,docker/docker.github.io,stevvooe/docker,hallyn/docker,dperny/docker,x1022as/docker,Microsoft/docker,luxas/docker,tianon/docker,rhatdan/storage,michelvocks/docker,13W/docker,rkazak/docker,Ramzec/docker,HuKeping/docker,AkihiroSuda/docker,sheimi/docker,bonczj/moby-json-file-logger,tkopczynski/docker,dccurtis/docker,TheBigBear/docker,tmp6154/docker,catinthesky/docker,joeuo/docker.github.io,tophj-ibm/docker,danyalKhaliq10p/moby,sterchelen/docker,nghiant2710/docker,shin-/docker.github.io,TheBigBear/docker,jzwlqx/denverdino.github.io,haveatry/docker,aaronlehmann/docker,diogomonica/docker,ncdc/docker,Mashimiao/docker,yosifkit/docker,jameszhan/docker,srust/docker,gschaetz/moby,vincentwoo/docker,michael-holzheu/docker,jongiddy/docker,willmtemple/docker,lixiaobing10051267/docker,joeuo/docker.github.io,jongiddy/docker,tophj-ibm/docker,gjaskiewicz/moby,allencloud/docker,cr7pt0gr4ph7/docker,Test-Betta-Inc/psychic-barnacle,kojiromike/docker,portworx/docker,jloehel/docker,menglingwei/denverdino.github.io,Mashimiao/docker,tophj-ibm/moby,docker/docker,liaoqingwei/docker,twaugh/docker,charleszheng44/moby,jlebon/docker,cnaize/docker,vijaykilari/docker,BSWANG/denverdino.github.io,laijs/moby,jzwlqx/denverdino.github.io,darrenstahlmsft/docker,icaoweiwei/docker,phiroict/docker,cyphar/docker,haveatry/docker,whuwxl/docker,pecameron/docker,kunalkushwaha/docker,Collinux/docker,mixja/docker,willmtemple/docker,scotttlin/docker,afein/docker,docker-zh/docker.github.io,HuKeping/docker,fangyuan930917/docker,charleszheng44/moby,shhsu/docker,konstruktoid/docker-upstream,cloudflare/docker,cyphar/docker,shubheksha/docker.github.io,aditirajagopal/docker,aidanhs/docker,justincormack/docker,14rcole/docker,ailispaw/docker,moby/moby,gdevillele/docker.github.io,cr7pt0gr4ph7/docker,runcom/docker,ColinHebert/docker,alexisbellido/docker.github.io,cpuguy83/docker,jlhawn/docker,allencloud/docker,swasd/baleno,thtanaka/docker,gnailuy/docker,upmio/docker,laijs/docker,shhsu/docker,vincentwoo/docker,londoncalling/docker.github.io,rremer/moby,michelvocks/docker,hypriot/docker,ZJUshuaizhou/docker,13W/docker,icecrime/docker,ZJU-SEL/docker,anweiss/docker.github.io,achanda/docker,erikstmartin/docker,KingEmet/docker,thaJeztah/docker.github.io,umerazad/docker,bfirsh/docker,geekylucas/docker,shin-/docker.github.io,HuKeping/docker,scollier/docker,mbanikazemi/docker,imeoer/hypercli,rhatdan/docker,denverdino/docker.github.io,kolyshkin/docker,maxamillion/docker,SaiedKazemi/docker,londoncalling/docker.github.io,HackToday/docker,Collinux/docker,nalind/docker,ibuildthecloud/docker,dims/docker,mahak/docker,imkin/moby,trebonian/docker,Shopify/docker,yosifkit/docker,docker/docker.github.io,stevvooe/docker,joaofnfernandes/docker.github.io,harche/docker,jzwlqx/denverdino.github.io,gdevillele/docker.github.io,mkumatag/docker,rancher/docker,denverdino/docker.github.io,denverdino/docker.github.io,ZJUshuaizhou/docker,POLJM242/docker,tonistiigi/docker,q384566678/docker,anortef/docker,justyntemme/docker,dgageot/docker,csfrancis/docker,paralin/docker,srust/docker,johnstep/moby-moby,aduermael/docker.github.io,phiroict/docker,wenchma/docker,moul/docker,SaiedKazemi/docker,dongjoon-hyun/docker,paralin/docker,AkihiroSuda/docker,fcrisciani/docker,tkopczynski/docker,kolyshkin/moby,Morsicus/docker,sfsmithcha/docker,stainboy/docker,jwhonce/docker,londoncalling/docker.github.io,gjaskiewicz/moby,bfirsh/docker,moypray/docker,containers/storage,konstruktoid/docker-upstream,Syntaxide/docker,moby/moby,Syntaxide/docker,laijs/moby,alexisbellido/docker.github.io,naveed-jamil-tenpearls/moby,solganik/docker,sallyom/docker,mtanlee/docker,mgoelzer/docker,tpounds/docker,tmp6154/docker,shubheksha/docker.github.io,projectatomic/docker,cpuguy83/docker,imkin/moby,lixiaobing1/docker,aidanhs/docker,ndeloof/docker,docker-zh/docker.github.io,toli/docker,crosbymichael/docker,michelvocks/docker,duglin/docker,laijs/docker,splunk/docker,kolyshkin/moby,estesp/docker,shin-/docker.github.io,thaJeztah/docker,OnePaaS/docker,nalind/docker,haveatry/docker,Tenk42/docker,aduermael/docker.github.io,Tenk42/docker,Ramzec/docker,tophj-ibm/docker,naveed-jamil-tenpearls/moby,medallia/docker,sanscontext/docker.github.io,lixiaobing1/docker,tklauser/docker,jameszhan/docker,dmcgowan/docker,csfrancis/docker,alfred-landrum/docker,BSWANG/denverdino.github.io,tkopczynski/docker,Ramzec/docker,AkihiroSuda/docker,dnephin/docker,supasate/docker,dperny/docker,whuwxl/docker,cyli/docker,darrenstahlmsft/moby,johnstep/moby-moby,ibuildthecloud/docker,endocode/docker,ajaymdesai/docker,cloudflare/docker,stevvooe/docker,mbanikazemi/docker,carolfh/docker,kunalkushwaha/docker,yp-engineering/docker,menglingwei/denverdino.github.io,joaofnfernandes/docker.github.io,toli/docker,nawawi/docker,mkumatag/docker,YujiOshima/docker,thtanaka/docker,michael-holzheu/docker,YujiOshima/docker,noironetworks/docker,aditirajagopal/docker,aaronlehmann/docker,mtrmac/docker,johnstep/docker.github.io,sanscontext/docker.github.io,thaJeztah/docker.github.io,jimjag/docker,jimjag/docker,shin-/docker.github.io,justyntemme/docker,HackToday/docker,anortef/docker,laijs/docker,endocode/docker,KarthikNayak/docker,sarnautov/moby,mstanleyjones/docker,medallia/docker,errordeveloper/docker,ndeloof/docker,unclejack/docker,nguyentm83/docker,xuxinkun/docker,xiekeyang/docker,portworx/docker,sunyuan3/docker,fsoppelsa/docker,harche/docker,sfsmithcha/docker,toli/docker,abhinavdahiya/docker,vijaykilari/docker,msabansal/docker,ColinHebert/docker,abhinavdahiya/docker,tklauser/docker,mtesselH/docker,ckeyer/docker,yp-engineering/docker,eskaaren/docker,mathewkoshy493/docker