no need for custom theme with mkdocs-materia-8.3.9

Author: PhilippSalvisberg

custom-theme/partials/header.html

@@ -10,7 +10,6 @@ theme:
   icon:
     repo: fontawesome/brands/github-alt
   name: 'material'
-  custom_dir: custom-theme
   favicon: images/favicon.ico
   palette:
     primary: 'white'