fix typo in docs
fix typo in docs

pandoraui/backbone,paulfalgout/backbone,ntgn81/backbone,zhangwei001/backbone,lujocom/backbone,dillonforrest/backbone-df-2,Sachin-Ganesh/backbone,jashkenas/backbone,elancom/backbone,leimd/backbone,neocotic/hipbone,ereddate/backbone,leimd/backbone,megawac/backbone,tadwhitaker/backbone,GerHobbelt/backbone,FishbaitHarry/backbone,IsoldaJS/isolda-pubsub,batigoal1980/backbone_example,udhayam/backbone,wxmfront/backbone,sueyeh/backbone,vin100bk/backbone,tadwhitaker/backbone,zgl2007dj/backbone,webcoding/backbone,timebackzhou/backbone,dak/backbone,Connectlegendary/backbone,Diwahars/backbone,ywenjinlin/backbone,huanglp47/backbone,premkumargithub/backbone,yuhualingfeng/backbone,braddunbar/backbone,sumyfly/backbone,aihua/backbone,dillonforrest/backbone-df,luffy94608/backbone,alekskorolev/lightbones,ebsco/backbone,ywenjinlin/backbone,chyeh727/backbone,jstrimpel/backbone,craigmichaelmartin/backbone,braddunbar/backbone,wushuyi/backbone,Niades/backbone,youprofit/backbone,ohbarye/backbone,nvoron23/backbone,darrrk/backbone,getshuvo/backbone,zhangwei001/backbone,Connectlegendary/backbone,npmcomponent/jashkenas-backbone,pandoraui/backbone,wakanpaladin/mybackbone,ridixcr/backbone,lastjune/backbone,JesseQin/backbone,amdjs/backbone,Khan/backbone,jashkenas/backbone,anhtholee/backbone,webcoding/backbone,streamablevideo/backbone,sumyfly/backbone,nikolas/backbone,jmeas/backbone,sitexa/backbone,hugohua/backbone,feychenie/backbone,Khan/backbone,fanhc019/backbone,npmcomponent/solutionio-backbone,sueyeh/backbone,premkumargithub/backbone,maryrosecook/backbone-df-2,liudianpeng/backbone,moimikey/backbone,kuychaco/backbone,wangdahoo/backbone,FishbaitHarry/backbone,guahanweb/backbone,yawenl/backbone,liudianpeng/backbone,akre54/backbone,LovelyL25/backbone.js,gfranko/backbone,trizko/backbone,Niades/backbone,platinumazure/backbone,jasoncbautista/backboneX,LovelyL25/backbone.js,batigoal1980/backbone_example,edgeware/backbone,maryrosecook/backbone-df-2,maryrosecook/backbone-df,zhoufan879/backbone,zdespolit/backbone,mmolinastudio/backbone,cgvarela/backbone,howtolearntocode/backbone,maryrosecook/backbone-df,zgl2007dj/backbone,Bug2014/backbone,vincent1988/backbone,getshuvo/backbone,dillonforrest/backbone-df-2,Aplopio/backbone,platinumazure/backbone,au-phiware/backbone,IsoldaJS/isolda-models,webapp/library,jstrimpel/backbone,chyeh727/backbone,Krasnyanskiy/backbone,Bug2014/backbone,ThiagoGarciaAlves/backbone,DannyDelott/backbone,lujocom/backbone,moccen/backbone,rashmisajjan/backbone,dcheepurupalli/backbone,zhangdimelody/backbone,akre54/backbone,guahanweb/backbone,ereddate/backbone,tzkKrbys/backbone,rjz/boneless,moccen/backbone,amitpatange88/backbonejs,npmcomponent/solutionio-backbone,cailong1028/backbone,7213/backbone,rashmisajjan/backbone,embarknow/backbone,wangcan2014/backbone,fanhc019/backbone,dillonforrest/backbone-df,darrrk/backbone,closeio/backbone,zhoufan879/backbone,jordansexton/backboner,gougouGet/backbone,dcheepurupalli/backbone,timebackzhou/backbone,jungjung917/backbone,youprofit/backbone,Sachin-Ganesh/backbone,webapp/library,feychenie/backbone,ppker/backbone,wjb12/backbone,zhangdimelody/backbone,gougouGet/backbone,streamablevideo/backbone,virtru-components/backbone,zdespolit/backbone,wxmfront/backbone,vincent1988/backbone,mmolinastudio/backbone,elma-cao/backbone,ohbarye/backbone,mrblueblue/backbone,tgriesser/backbone,huanglp47/backbone,gfranko/backbone,mpapp/backbone,GrimDerp/backbone,moimikey/backbone,Flip120/backbone,kuychaco/backbone,honger05/backbone,maryrosecook/backbone-df,honger05/backbone,tibic/backbone,gmaclennan/backbone,embarknow/backbone,jewsroch/backbone,tibic/backbone,ppker/backbone,componentizr/backbone,sunday-star/backbone,jridgewell/backbone,7213/backbone,ntgn81/backbone,gmaclennan/backbone,Diwahars/backbone,ThiagoGarciaAlves/backbone,Krasnyanskiy/backbone,oss-practice/backbone,gdi2290/backbone,ridixcr/backbone,ThisIsManta/Backbone,ThisIsManta/Backbone,antoniogarrote/backbone,yawenl/backbone,amitpatange88/backbonejs,jmeas/backbone,DannyDelott/backbone,trizko/backbone,Khan/backbone,jungjung917/backbone,FormidableLabs/backbone,maryrosecook/backbone-df-2,elancom/backbone,linalu1/backbone,cailong1028/backbone,wakanpaladin/mybackbone,udhayam/backbone,sunday-star/backbone,Aplopio/backbone,alekskorolev/lightbones,sitexa/backbone,nvoron23/backbone,neocotic/hipbone,dillonforrest/backbone-df-2,elma-cao/backbone,wushuyi/backbone,howtolearntocode/backbone,Akkuma/backbone,dak/backbone,ebsco/backbone,Aplopio/backbone,yuhualingfeng/backbone,nikolas/backbone,mrblueblue/backbone,jewsroch/backbone,Flip120/backbone,heroazure/backbone,wangcan2014/backbone,wjb12/backbone,JesseQin/backbone,GerHobbelt/backbone,anhtholee/backbone,aihua/backbone,edgeware/backbone,lastjune/backbone,closeio/backbone,tzkKrbys/backbone,craigmichaelmartin/backbone,dillonforrest/backbone-df,vin100bk/backbone,heroazure/backbone,luffy94608/backbone,gitterHQ/backbone,wangdahoo/backbone,guigrpa/backbone,GrimDerp/backbone,jridgewell/backbone,au-phiware/backbone,cgvarela/backbone,paulfalgout/backbone,linalu1/backbone