Auto merge of #84015 - tdelabro:issue-76704-fix, r=Amanieu
Auto merge of #84015 - tdelabro:issue-76704-fix, r=Amanieu

doc asm feature - Added new 'Label' section with example and explanations

Fixes #76704

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