A few small changes:
A few small changes:

   * prefer META6.json to META.info
   * more explanation on 'provides'
   * make it clear that other repos than github may work

perl6/doc,jonathanstowe/doc,dmaestro/doc,stmuk/doc,MasterDuke17/doc,dha/doc,stmuk/doc,stmuk/doc,perl6/doc,gfldex/doc,perl6/doc,jonathanstowe/doc,jonathanstowe/doc,gfldex/doc,dmaestro/doc,jonathanstowe/doc,MasterDuke17/doc,tbrowder/doc,antquinonez/doc,tbrowder/doc,antquinonez/doc,gfldex/doc,dha/doc,MasterDuke17/doc,antquinonez/doc,dmaestro/doc,gfldex/doc,antquinonez/doc,antquinonez/doc,dmaestro/doc,dha/doc,gfldex/doc,dha/doc,jonathanstowe/doc,perl6/doc,stmuk/doc,tbrowder/doc,stmuk/doc,MasterDuke17/doc,tbrowder/doc,dmaestro/doc,dha/doc,perl6/doc