Tweak README.
Tweak README.

feijilei/polipo,jech/polipo,danchr/polipo,galeksandrp/polipo,nxtreaming/chumen,ssb22/polipo2,clowwindy/polipo,nxtreaming/chumen,TierraDelFuego/opilop,strongwillow/polipo,feijilei/polipo,dxq-git/polipo,Psiphon-Inc/polipo,berkley4/polipo,dxq-git/polipo,ssb22/polipo2,ajmgh/polipo,fqtools/polipo,berkley4/polipo,berkley4/polipo,akkakks/polipo,akkakks/polipo,caeies/polipo-caeies,Android-Apps/polipo,dxq-git/polipo,galeksandrp/polipo,nxtreaming/chumen,lkraider/polipo,Android-Apps/polipo,fqtools/polipo,akkakks/polipo,jech/polipo,feijilei/polipo,ssb22/polipo2,lkraider/polipo,galeksandrp/polipo,lkraider/polipo,jech/polipo,fqtools/polipo,strongwillow/polipo