Rollup merge of #76056 - pickfire:patch-10, r=jyn514
Rollup merge of #76056 - pickfire:patch-10, r=jyn514

Add more info for Vec Drain doc

See its documentation for more

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