Add exclude_docs to mkdocs configuration

Author: mpilgrem

mkdocs.yml

@@ -28,6 +28,9 @@ extra_javascript:
 # Read the Docs requires JQuery for its JavaScript code to inject the flyout
 # menu. Material for MkDocs does not come with JQuery.
 - 'https://code.jquery.com/jquery-3.6.1.min.js'
+exclude_docs: |
+  /maintainers/archive/
+  /maintainers/stack_errors.md
 
 nav:
 - Welcome!: README.md