Document `no worries` pragma
Document `no worries` pragma

Rakudo impl: https://github.com/rakudo/rakudo/commit/f5b4d89fbb
Spec:        https://github.com/perl6/roast/commit/5c91d6803b

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