Add Google Cloud Storage to doc
Add Google Cloud Storage to doc

gohugoio/hugo,bramp/hugo,jygastaud/hugo,melo/hugo,coderzh/hugo,fhergomez/hugo,bogem/hugo,fhergomez/hugo,ffrizzo/hugo,kujohn/hugo,anthonyfok/hugo,halostatue/hugo,mdhender/hugo,coderzh/hugo,kujohn/hugo,jygastaud/hugo,vbatoufflet/hugo,abourget/hugo,derekperkins/hugo,anthonyfok/hugo,MarkDBlackwell/hugo,ifraixedes/hugo,anthonyfok/hugo,sprig/hugo,bogem/hugo,mitchchn/hugo,tjyang/hugo,tubo028/hugo,fedelibre/hugo,digitalcraftsman/hugo,bramp/hugo,ryanclarke/hugo,MarkDBlackwell/hugo,mdhender/hugo,tubo028/hugo,fedelibre/hugo,mayah/hugo,tischda/hugo,badoet/hugo,mayah/hugo,gohugoio/hugo,gohugoio/hugo,ffrizzo/hugo,Zenithar/hugo,ryanclarke/hugo,sprig/hugo,digitalcraftsman/hugo,fedelibre/hugo,mitchchn/hugo,mdhender/hugo,Zenithar/hugo,soundrussian/hugo,tischda/hugo,tatsushid/hugo,tatsushid/hugo,derekperkins/hugo,soundrussian/hugo,vbatoufflet/hugo,melo/hugo,tjyang/hugo,mdhender/hugo,fedelibre/hugo,badoet/hugo,abourget/hugo,ifraixedes/hugo,halostatue/hugo