chore: update examples and Readme

examples/templates/example-simple.html

@@ -2,8 +2,7 @@
 <p>This is: {{this}}</p>
 <p>Custom field date: {{this.date}}</p>
 <ul>
-{%- for child, extras in this.children.items() -%}
-{%- set etxra = (extras|first).tags_in_page %}
-<li>{{etxra|length}} tags on page "{{child.path}}": {{etxra}}</li>
+{%- for child in this.children %}
+<li>page "{{child.path}}" with tags: {{child.tags}}</li>
 {%- endfor %}
 </ul>

examples/templates/page.html

@@ -20,7 +20,7 @@ main { margin: 3em; }
   <footer>
     {%- for k, v in [('testA','Config'),('testB','Simple'),('testC','Advanced')] %}
     <div>{{v}} Tags:
-      {%- for x in this|vgroups(k, recursive=True)|unique|sort %} 
+      {%- for x in this|vgroups(k, recursive=True, order_by='group') %} 
         <a href="{{ x|url }}">({{x.key}})</a>
       {%- endfor %} 
     </div>