Update Contributing document.
Update Contributing document.

jerryblakley/libcloud,mgogoulos/libcloud,techhat/libcloud,samuelchong/libcloud,sgammon/libcloud,supertom/libcloud,kater169/libcloud,pquentin/libcloud,mathspace/libcloud,SecurityCompass/libcloud,aleGpereira/libcloud,sahildua2305/libcloud,mistio/libcloud,carletes/libcloud,watermelo/libcloud,Verizon/libcloud,niteoweb/libcloud,MrBasset/libcloud,aviweit/libcloud,t-tran/libcloud,Scalr/libcloud,iPlantCollaborativeOpenSource/libcloud,NexusIS/libcloud,marcinzaremba/libcloud,curoverse/libcloud,aviweit/libcloud,sfriesel/libcloud,schaubl/libcloud,illfelder/libcloud,wido/libcloud,andrewsomething/libcloud,carletes/libcloud,briancurtin/libcloud,Cloud-Elasticity-Services/as-libcloud,smaffulli/libcloud,Itxaka/libcloud,vongazman/libcloud,thesquelched/libcloud,techhat/libcloud,MrBasset/libcloud,ByteInternet/libcloud,NexusIS/libcloud,mgogoulos/libcloud,vongazman/libcloud,watermelo/libcloud,mbrukman/libcloud,mathspace/libcloud,atsaki/libcloud,JamesGuthrie/libcloud,kater169/libcloud,Kami/libcloud,StackPointCloud/libcloud,JamesGuthrie/libcloud,sfriesel/libcloud,munkiat/libcloud,pantheon-systems/libcloud,pquentin/libcloud,wrigri/libcloud,lochiiconnectivity/libcloud,mtekel/libcloud,t-tran/libcloud,thesquelched/libcloud,Scalr/libcloud,andrewsomething/libcloud,illfelder/libcloud,supertom/libcloud,t-tran/libcloud,carletes/libcloud,schaubl/libcloud,wrigri/libcloud,atsaki/libcloud,ClusterHQ/libcloud,samuelchong/libcloud,aviweit/libcloud,sahildua2305/libcloud,Itxaka/libcloud,curoverse/libcloud,dcorbacho/libcloud,atsaki/libcloud,Cloud-Elasticity-Services/as-libcloud,apache/libcloud,Cloud-Elasticity-Services/as-libcloud,techhat/libcloud,briancurtin/libcloud,mbrukman/libcloud,cryptickp/libcloud,kater169/libcloud,apache/libcloud,munkiat/libcloud,supertom/libcloud,SecurityCompass/libcloud,sfriesel/libcloud,lochiiconnectivity/libcloud,sergiorua/libcloud,apache/libcloud,ByteInternet/libcloud,ByteInternet/libcloud,vongazman/libcloud,smaffulli/libcloud,ZuluPro/libcloud,wuyuewen/libcloud,cloudControl/libcloud,illfelder/libcloud,jimbobhickville/libcloud,dcorbacho/libcloud,marcinzaremba/libcloud,schaubl/libcloud,thesquelched/libcloud,Kami/libcloud,StackPointCloud/libcloud,cloudControl/libcloud,wido/libcloud,iPlantCollaborativeOpenSource/libcloud,wrigri/libcloud,sgammon/libcloud,watermelo/libcloud,SecurityCompass/libcloud,wuyuewen/libcloud,mistio/libcloud,pantheon-systems/libcloud,aleGpereira/libcloud,Verizon/libcloud,Itxaka/libcloud,wido/libcloud,DimensionDataCBUSydney/libcloud,jimbobhickville/libcloud,lochiiconnectivity/libcloud,smaffulli/libcloud,sergiorua/libcloud,cryptickp/libcloud,mbrukman/libcloud,sahildua2305/libcloud,wuyuewen/libcloud,jerryblakley/libcloud,samuelchong/libcloud,Verizon/libcloud,MrBasset/libcloud,niteoweb/libcloud,mtekel/libcloud,niteoweb/libcloud,iPlantCollaborativeOpenSource/libcloud,DimensionDataCBUSydney/libcloud,ClusterHQ/libcloud,munkiat/libcloud,erjohnso/libcloud,jimbobhickville/libcloud,JamesGuthrie/libcloud,aleGpereira/libcloud,andrewsomething/libcloud,pquentin/libcloud,briancurtin/libcloud,NexusIS/libcloud,ZuluPro/libcloud,StackPointCloud/libcloud,mgogoulos/libcloud,erjohnso/libcloud,cloudControl/libcloud,mathspace/libcloud,dcorbacho/libcloud,erjohnso/libcloud,sergiorua/libcloud,DimensionDataCBUSydney/libcloud,cryptickp/libcloud,mistio/libcloud,curoverse/libcloud,jerryblakley/libcloud,pantheon-systems/libcloud,Scalr/libcloud,ZuluPro/libcloud,marcinzaremba/libcloud,Kami/libcloud,mtekel/libcloud