Link rot link:

https://wikipedia.org/wiki/Link_rot

MS Learn suffixes:

Microsoft Azure ?WT.mc_id=AZ-MVP-5003719 Developer / DevOps ?WT.mc_id=DOP-MVP-5003719

Link check action: skip the links between these tags:

Section

Disable link checking in this section. Ignore this Bad Link

To escape $ setups like from GitHub Action examples

Wrap the lines you want to escape in the following tags: