docs: fix mike docs deployment

Author: DeepSpace2

docs/theme/overrides/main.html

@@ -0,0 +1,8 @@
+{% extends "base.html" %}
+
+{% block outdated %}
+  You're not viewing the latest version.
+  <a href="{{ '../' ~ base_url }}"> 
+    <strong>Click here to go to latest.</strong>
+  </a>
+{% endblock %}

mkdocs.yml

@@ -5,6 +5,7 @@ site_url: https://deepspace2.github.io/plugnpin
 repo_url: https://github.com/deepspace2/plugnpin
 theme:
   name: material
+  custom_dir: docs/theme/overrides
   icon:
     repo: fontawesome/brands/github
   features: