Add a security page and link it from the landing page and footer.

endpoints/web.py

@@ -100,11 +100,18 @@ def new():
 def repository():
   return index('')
 
+
+@app.route('/security/')
+def security():
+  return index('')
+
+
 @app.route('/v1')
 @app.route('/v1/')
 def v1():
   return index('')
 
+
 @app.route('/status', methods=['GET'])
 def status():
   return make_response('Healthy')