explain ip generator in discovery/README
explain ip generator in discovery/README

Signed-off-by: Chanwit Kaewkasi <ee9d6f5c374f9fbae13205760a4ee2f011e8b2ae@gmail.com>

troy0820/docker.github.io,aduermael/docker.github.io,PeoplePerHour/libswarm,londoncalling/docker.github.io,LuisBosquez/docker.github.io,ealang/swarm,christophelec/swarm,joaofnfernandes/docker.github.io,vlajos/swarm,christophelec/swarm,denverdino/denverdino.github.io,CodeNow/swarm,megamsys/swarm,barais/swarm,aidora/pisces,jdamick/swarm,liubin/swarm,anweiss/docker.github.io,denverdino/docker.github.io,alexisbellido/docker.github.io,rav121/swarm,BSWANG/denverdino.github.io,shubheksha/docker.github.io,rajdeepd/swarm,LuisBosquez/docker.github.io,LuisBosquez/docker.github.io,jimenez/swarm,jdamick/swarm,mrjana/swarm,docker-zh/docker.github.io,bdwill/docker.github.io,phiroict/docker,BSWANG/swarm,denverdino/swarm-1,docker/docker.github.io,NunoEdgarGub1/swarm,abronan/swarm,MHBauer/swarm,moxiegirl/swarm,jzwlqx/denverdino.github.io,ealang/swarm,shin-/docker.github.io,rillig/docker.github.io,kunalkushwaha/swarm,abronan/swarm,jay-lau/swarm,shin-/docker.github.io,BSWANG/denverdino.github.io,sanscontext/docker.github.io,docker-zh/docker.github.io,thaJeztah/docker.github.io,gonkulator/swarm,Aorjoa/swarm,deis/swarm,alexisbellido/docker.github.io,barais/swarm,beni55/swarm-1,bsmr-docker/swarm,rchicoli/swarm,tangkun75/swarm,iaintshine/swarm,jeffjen/swarm,shubheksha/docker.github.io,ezrasilvera/SwarmACLs,schmunk42/swarm,cgvarela/swarm,Aorjoa/swarm,resouer/swarm,riuvshin/swarm,pdevine/swarm,alexisbellido/docker.github.io,auzias/swarm,shahankhatch/swarm,parapsyche/swarm,rutulpatel/swarm,jzwlqx/denverdino.github.io,iaintshine/swarm,dims/swarm,JimGalasyn/docker.github.io,FreedomWangLi/swarm,gdevillele/docker.github.io,fugr/swarm,LukasBacigal/swarm,allencloud/swarm,joeuo/docker.github.io,denverdino/docker.github.io,joaofnfernandes/docker.github.io,shot/swarm,swarm-hooks/swarm,snrism/swarm,yp-engineering/swarm,londoncalling/docker.github.io,swarm-hooks/swarm,denverdino/denverdino.github.io,mgoelzer/swarm,jzwlqx/denverdino.github.io,doronp/swarm,pssahi/swarm,menglingwei/denverdino.github.io,ezrasilvera/swarm,gradywang/swarm,unodba/swarm,denverdino/denverdino.github.io,menglingwei/denverdino.github.io,raoofm/swarm,ricca742/swarm,FollowMyDev/swarm,mavenugo/swarm,xFragger/swarm,CiaranCostello/swarm,bdwill/docker.github.io,linecheng/swarm,tranceitionalMynd/swarm,danix800/docker.github.io,sfsmithcha/swarm,kyhavlov/swarm,gdevillele/docker.github.io,CodeNow/swarm,anweiss/docker.github.io,shin-/docker.github.io,mavenugo/swarm,Spritekin/swarm,joaofnfernandes/docker.github.io,affo/swarm,gonkulator/swarm,sanscontext/docker.github.io,rajdeepd/swarm,joeuo/docker.github.io,BSWANG/denverdino.github.io,ejholmes/swarm,danix800/docker.github.io,BSWANG/denverdino.github.io,LukasBacigal/swarm,shin-/docker.github.io,morpheyesh/swarm,shubheksha/docker.github.io,aidora/pisces,polyverse-security/swarm,LuisBosquez/docker.github.io,u2mejc/swarm,shin-/docker.github.io,shot/swarm,ricca742/swarm,jimmycmh/swarm,zkcrescent/swarm,phiroict/docker,docker-zh/docker.github.io,jay-lau/swarm,phiroict/docker,menglingwei/denverdino.github.io,rillig/docker.github.io,rancher/swarm,ezrasilvera/swarm,sanscontext/docker.github.io,denverdino/docker.github.io,pssahi/swarm,BSWANG/swarm,errordeveloper/swarm,raoofm/swarm,ch3lo/swarm,bpradipt/swarm,JimGalasyn/docker.github.io,denverdino/docker.github.io,francisbouvier/swarm,yp-engineering/swarm,srikalyan/swarm,deis/swarm,cpuguy83/swarm,dims/swarm,cgvarela/swarm,rutulpatel/swarm,dnephin/swarm,jimmyxian/swarm,thaJeztah/docker.github.io,jzwlqx/denverdino.github.io,linecheng/swarm,srikalyan/swarm,liubin/swarm,riuvshin/swarm,echupriyanov/swarm,aduermael/docker.github.io,joeuo/docker.github.io,auzias/swarm,joeuo/docker.github.io,mrjana/swarm,tranceitionalMynd/swarm,denverdino/swarm-1,qianzhangxa/swarm,londoncalling/docker.github.io,rancher/swarm,doronp/swarm,bdwill/docker.github.io,rillig/docker.github.io,menglingwei/denverdino.github.io,BSWANG/denverdino.github.io,docker-zh/docker.github.io,thaJeztah/docker.github.io,allencloud/swarm,LuisBosquez/docker.github.io,johnstep/docker.github.io,denverdino/swarm,anweiss/docker.github.io,denverdino/denverdino.github.io,adouang/swarm,schmunk42/swarm,MHBauer/swarm,rchicoli/swarm,johnstep/docker.github.io,akerbis/armhf-swarm,gdevillele/docker.github.io,everett-toews/swarm,danix800/docker.github.io,atlassian/swarm,troy0820/docker.github.io,alexisbellido/docker.github.io,bdwill/docker.github.io,denverdino/swarm,ejholmes/swarm,phiroict/docker,rav121/swarm,u2mejc/swarm,everett-toews/swarm,anweiss/docker.github.io,vlajos/swarm,errordeveloper/swarm,bsmr-docker/swarm,CiaranCostello/swarm,gdevillele/docker.github.io,kyhavlov/swarm,phiroict/docker,jzwlqx/denverdino.github.io,ehazlett/swarm,johnstep/docker.github.io,parapsyche/swarm,docker/docker.github.io,jimenez/swarm,PeoplePerHour/libswarm,krystism/swarm,joaofnfernandes/docker.github.io,JimGalasyn/docker.github.io,therealbill/swarm,akerbis/armhf-swarm,gradywang/swarm,echupriyanov/swarm,troy0820/docker.github.io,snrism/swarm,anweiss/docker.github.io,danix800/docker.github.io,fugr/swarm,affo/swarm,NunoEdgarGub1/swarm,tangkun75/swarm,EderRoger/swarm,beni55/swarm-1,ch3lo/swarm,docker-zh/docker.github.io,resouer/swarm,jeffjen/swarm,alexisbellido/docker.github.io,atlassian/swarm,morpheyesh/swarm,docker/docker.github.io,bpradipt/swarm,thaJeztah/docker.github.io,megamsys/swarm,jimmycmh/swarm,gdevillele/docker.github.io,troy0820/docker.github.io,denverdino/docker.github.io,FollowMyDev/swarm,londoncalling/docker.github.io,johnstep/docker.github.io,unodba/swarm,mgoelzer/swarm,kunalkushwaha/swarm,moxiegirl/swarm,menglingwei/denverdino.github.io,joeuo/docker.github.io,aduermael/docker.github.io,docker/docker.github.io,xFragger/swarm,rillig/docker.github.io,pdevine/swarm,jimmyxian/swarm,JimGalasyn/docker.github.io,EderRoger/swarm,johnstep/docker.github.io,ehazlett/swarm,shubheksha/docker.github.io,shahankhatch/swarm,zkcrescent/swarm,sanscontext/docker.github.io,bdwill/docker.github.io,ezrasilvera/SwarmACLs,londoncalling/docker.github.io,FreedomWangLi/swarm,adouang/swarm,JimGalasyn/docker.github.io,krystism/swarm,dnephin/swarm,therealbill/swarm,qianzhangxa/swarm,cpuguy83/swarm,aduermael/docker.github.io,denverdino/denverdino.github.io,sanscontext/docker.github.io,sfsmithcha/swarm,francisbouvier/swarm,shubheksha/docker.github.io,Spritekin/swarm,thaJeztah/docker.github.io,joaofnfernandes/docker.github.io,polyverse-security/swarm,docker/docker.github.io