Added support for adding update dates to blog posts

src/blog-post.html

@@ -87,6 +87,18 @@
                 </div>
               </li>
 
+              <!-- Page date updated -->
+              {% if page.meta.date_updated %}
+                <li class="md-nav__item">
+                  <div class="md-nav__link">
+                    {% include ".icons/material/calendar-clock.svg" %}
+                    <time datetime="{{ page.meta.date_updated }}" class="md-ellipsis">
+                      {{- page.meta.date_updated_format -}}
+                    </time>
+                  </div>
+                </li>
+              {% endif %}
+
               <!-- Page categories -->
               {% if page.categories %}
                 <li class="md-nav__item">

src/plugins/blog/plugin.py

@@ -358,6 +358,12 @@ class BlogPlugin(BasePlugin[BlogConfig]):
             page.meta["date"], date_format, config
         )
 
+        # Format date of last update for rendering
+        if "date_updated" in page.meta:
+            page.meta["date_updated_format"] = self._format_date(
+                page.meta["date_updated"], date_format, config
+            )
+
         # Compute readtime if desired and not explicitly set
         if self.config.post_readtime: