Update README.md (#254)

pin up version for cdnjs

README.md

@@ -82,7 +82,7 @@ Install `json-schema-faker` with bower:
 JSON-Schema-faker is also available at [cdnjs.com](https://www.cdnjs.com/libraries/json-schema-faker). This means you can just include the script file into your HTML:
 
     # remember to update the version number!
-    <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/json-schema-faker/0.3.4/json-schema-faker.min.js"></script>
+    <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/json-schema-faker/0.4.1/json-schema-faker.min.js"></script>
 
 It will be fetched from the [Content Delivery Network](https://en.wikipedia.org/wiki/Content_delivery_network) without installing any node.js package.