Replace npmcdn.com with unpkg.com (#113)

Author: npmcdn-to-unpkg-bot

examples/commentsBox/index.html

@@ -15,10 +15,10 @@
     <script src="https://cdn.firebase.com/libs/reactfire/1.0.0/reactfire.min.js"></script>
 
     <!-- throw-in-the-towel -->
-    <script src="https://npmcdn.com/throw-in-the-towel@2"></script>
+    <script src="https://unpkg.com/throw-in-the-towel@2"></script>
 
     <!-- Markdown -->
-    <script src="https://npmcdn.com/showdown@0.3.1"></script>
+    <script src="https://unpkg.com/showdown@0.3.1"></script>
 
     <!-- Custom JS -->
     <script type="text/babel" src="js/app.js"></script>

examples/todoApp/index.html

@@ -14,7 +14,7 @@
     <script src="https://cdn.firebase.com/libs/reactfire/1.0.0/reactfire.min.js"></script>
 
     <!-- throw-in-the-towel -->
-    <script src="https://npmcdn.com/throw-in-the-towel@2"></script>
+    <script src="https://unpkg.com/throw-in-the-towel@2"></script>
 
     <!-- Initialize the Firebase SDK -->
     <script>