Detect common problems during cibuild

[bart-vmware]

For example:

• The path in links that don't start with http:// or https:// must end with .md instead of .html
• Normalize links to the Microsoft docs:
  • Use https://learn.microsoft.com instead of https://docs.microsoft.com
  • Remove /en-us from the path
  • Remove query string parameters, such as view and tabs; use regex //(docs|learn)\.microsoft\.com.*\? to find matches