diff --git a/playground/index.html b/playground/index.html
index 0a6ab4ac54..3d75b9da60 100644
--- a/playground/index.html
+++ b/playground/index.html
@@ -1,3 +1,8 @@
+<!--
+  EVERYTHING in index.html file will change
+  Don't feel like you have to learn all of this boilerplate. 
+  It's not important and will change.
+-->
 <!doctype html>
 <html lang="en">
 <head>
@@ -9,7 +14,6 @@
     <script src="lib/extension-register.js"></script>
     <script>
         register(System);
-        <!-- TODO: how to get rid of this line? -->
     </script>
 
     <!-- Angular2-related imports -->
