chore: Start versioning docs

Author: konradasb

docs/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+{% block outdated %}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

@@ -15,10 +15,16 @@ theme:
   palette:
     primary: violet
   include_sidebar: true
+  custom_dir: docs/overrides
 
 extra_css:
   - css/extra.css
 
+extra:
+  generator: false
+  version:
+    provider: mike
+
 nav:
   - Home:
       - Overview: "index.md"