Update README: copy edit, mention more wikis
Update README: copy edit, mention more wikis

merchantguru/trellis,cimocimocimo/cimo-wordpress-server,roots/bedrock-ansible,louim/bedrock-ansible,partounian/trellis,partounian/trellis,jvandijk/epwp-trellis,patrickheeney/trellis,pressbooks/trellis,ChilliCreative/trellis,rogeruiz/trellis,jwall/trellis,fullyint/trellis,alan-c/trellis,jeffstieler/bedrock-ansible,partounian/trellis,proteusthemes/pt-ops,ChilliCreative/trellis,all9lives/trellis,jvandijk/epwp-trellis,dboune/trellis,BrandonShutter/trellis,all9lives/trellis,skynet/trellis,austinpray/bedrock-ansible,ckovey/trellis,proteusthemes/pt-ops,buluma/trellis,mAAdhaTTah/bedrock-ansible,NicBeltramelli/trellis,newtonne/trellis,newtonne/trellis,buluma/trellis,mAAdhaTTah/bedrock-ansible,erikbelusic/trellis,SecureCloud-biz/trellis,partounian/trellis,jwkicklighter/trellis,mlaa/trellis,fullyint/trellis,kalenjohnson/trellis,ckovey/trellis,NicBeltramelli/trellis,dailysecret/trellis,newtonne/trellis,evanfuture/trellis,NicBeltramelli/trellis,cimocimocimo/cimo-wordpress-server,roots/trellis,kalenjohnson/trellis,jvandijk/trellis,cimocimocimo/cimo-wordpress-server,pressbooks/trellis,kalenjohnson/trellis,mAAdhaTTah/bedrock-ansible,jeffstieler/bedrock-ansible,fullyint/trellis,Twansparant/trellis-db-sync,Twansparant/trellis-db-sync,drawcard/trellis,dboune/trellis,Twansparant/trellis-db-sync,mAAdhaTTah/bedrock-ansible,kalenjohnson/trellis,roots/bedrock-ansible,ThemeSurgeon/trellis,NicBeltramelli/trellis,fullyint/trellis,drewrawitz/wp-ansible,Twansparant/trellis-db-sync,BrandonShutter/trellis,dmin7b5/trellis,creditera/trellis,kulturavashchi/trellis,rpkoller/trellis,dailysecret/trellis,cimocimocimo/cimo-wordpress-server,buluma/trellis,fusionpig/trellis,bbttxu/trellis,mlaa/trellis,alan-c/trellis,proteusthemes/pt-ops,jeffstieler/bedrock-ansible,roots/trellis,buluma/trellis