Rollup merge of #70623 - rcoh:patch-2, r=jonas-schievink
Rollup merge of #70623 - rcoh:patch-2, r=jonas-schievink

Fix broken link in README

Crate name for rustc entry point docs changed. Fixes #70603

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