feat: add video tutorial iframe to Task Todo List documentation

Author: hannesrudolph

docs/features/task-todo-list.mdx

@@ -21,6 +21,24 @@ Todo lists are automatically created for complex tasks, multi-step workflows, or
 See [When Roo Creates Todo Lists](#when-roo-creates-todo-lists) for detailed information about automatic and manual triggers.
 :::
 
+<div style={{ position: 'relative', paddingBottom: '56.25%', height: 0, overflow: 'hidden' }}>
+  <iframe
+    src="https://www.youtube.com/embed/6h5vB9PpoPk"
+    style={{
+      position: 'absolute',
+      top: 0,
+      left: 0,
+      width: '100%',
+      height: '100%',
+    }}
+    frameBorder="0"
+    allow="autoplay; encrypted-media"
+    allowFullScreen
+  ></iframe>
+</div>
+
+<br />
+
 ---
 
 ## Use Case