Adds ⁇ ‼ to the index
Adds ⁇ ‼ to the index

And rephrases a bit the doc. Basically I was checking to close #1851,
and I don't like to close without an actual change. So...

tbrowder/doc,stmuk/doc,MasterDuke17/doc,jonathanstowe/doc,dmaestro/doc,dmaestro/doc,stmuk/doc,perl6/doc,MasterDuke17/doc,MasterDuke17/doc,tbrowder/doc,perl6/doc,tbrowder/doc,dmaestro/doc,dmaestro/doc,MasterDuke17/doc,tbrowder/doc,dmaestro/doc,jonathanstowe/doc,jonathanstowe/doc,perl6/doc,stmuk/doc,perl6/doc,stmuk/doc,perl6/doc,jonathanstowe/doc,stmuk/doc,jonathanstowe/doc