Rollup merge of #37391 - vtduncan:vec-docs, r=GuillaumeGomez
Rollup merge of #37391 - vtduncan:vec-docs, r=GuillaumeGomez

Broken links in Vec docs

Fixed some issues with quote/bracket nesting and made quoting more consistent.

r? @steveklabnik

GBGamer/rust,GBGamer/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust,graydon/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,graydon/rust,aidancully/rust,GBGamer/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,GBGamer/rust,aidancully/rust,graydon/rust,aidancully/rust