Rollup merge of #38674 - GuillaumeGomez:atomic_fn_docs, r=frewsxcv
Rollup merge of #38674 - GuillaumeGomez:atomic_fn_docs, r=frewsxcv

Add missing urls for atomic fn docs

r? @frewsxcv

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