Better documentation for leafs/nodes.

docs/_themes/flask/layout.html

@@ -7,7 +7,7 @@
   <link media="only screen and (max-device-width: 480px)" href="{{
     pathto('_static/small_flask.css', 1) }}" type= "text/css" rel="stylesheet" />
   <a href="https://github.com/davidhalter/jedi">
-    <img style="position: absolute; top: 0; right: 0; border: 0;" src="https://s3.amazonaws.com/github/ribbons/forkme_right_red_aa0000.png" alt="Fork me on GitHub">
+    <img style="position: absolute; top: 0; right: 0; border: 0;" src="https://s3.amazonaws.com/github/ribbons/forkme_right_red_aa0000.png" alt="Fork me">
   </a>
 {% endblock %}
 {%- block relbar2 %}{% endblock %}