fix(starterkit-twig-demo): mv source dist so it can be installed

Author: EvanLovely

packages/starterkit-twig-demo/dist/_annotations/annotations.js

@@ -0,0 +1,9 @@
+{
+  "comments" : [
+    {
+      "el": "header[role=banner]",
+      "title" : "Masthead",
+      "comment": "The main header of the site doesn't take up too much screen real estate in order to keep the focus on the core content. It's using a linear CSS gradient instead of a background image to give greater design flexibility and reduce HTTP requests."
+    }
+  ]
+}