add g$ and g0 docs in README
add g$ and g0 docs in README

elderbas/vimium,crazypenguincode/vimium,elegantwww/vimium,tuchangwei/vimium,csmalin/vimium,gdh1995/vimium,VPashkov/vimium,Aleroniponi/vimium,philc/vimium,douglas-larocca/vimium,tuchangwei/vimium,Aleroniponi/vimium,PickRelated/vimium,cyrixhero/vimium,elderbas/vimium,csmalin/vimium,Lw-Cui/vimium,PrestanceDesign/vimium,bkudria/vimium,shaung/vimium,justalittlenoob/vimium,Aleroniponi/vimium,dimatter/vimium,wildeyes/vimium,smblott-github/vimium,poacher2k/vimium,Lw-Cui/vimium,dimatter/vimium,jb55/vimium-plus,borgified/vimium,decaffeinate-examples/vimium,smblott-github/vimium-smblott,VPashkov/vimium,smblott-github/vimium,wildeyes/vimium,borgified/vimium,PickRelated/vimium,philc/vimium,gdh1995/vimium,poacher2k/vimium,tuchangwei/vimium,smblott-github/vimium,douglas-larocca/vimium,mrmr1993/vimium,zhangmin510/vimium,willsALMANJ/vimium,decaffeinate-examples/vimium,llimllib/vimium,philc/vimium,elegantwww/vimium,bkudria/vimium,PickRelated/vimium,csmalin/vimium,Robinson10240/vimium,Robinson10240/vimium,justalittlenoob/vimium,PrestanceDesign/vimium,zhangmin510/vimium,mrmr1993/vimium,crazypenguincode/vimium,decaffeinate-examples/vimium,zhangmin510/vimium,wildeyes/vimium,mrmr1993/vimium,jb55/vimium-plus,dimatter/vimium,willsALMANJ/vimium,hhsue/vimium,Robinson10240/vimium,justalittlenoob/vimium,willsALMANJ/vimium,cyrixhero/vimium,VPashkov/vimium,hhsue/vimium,hhsue/vimium,borgified/vimium,cyrixhero/vimium,smblott-github/vimium-smblott,douglas-larocca/vimium,elderbas/vimium,elegantwww/vimium,poacher2k/vimium,Lw-Cui/vimium,PrestanceDesign/vimium,gdh1995/vimium,bkudria/vimium