Add some style advice
Add some style advice

These represent common feedback given on PRs

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