update postman collection link (#290)

update postman collection link

Author: marabooy

pages/getting-started/learning-odata-on-postman.html

@@ -13,7 +13,7 @@ <h2>How to Learn OData on Postman</h2>
 <li>Import the collection
 <ul>
 <li>Click the "Import" button on the top bar.</li>
-<li>Choose download from link and paste the <a href="https://www.postman.com/collections/705714417adde4e687e4">Postman collection URL</a>.</li>
+<li>Choose download from link and paste the <a href="https://www.postman.com/collections/bf7d9130241aaa7160d8">Postman collection URL</a>.</li>
 </ul>
 <p>    You can find more details of Postman collection in <a href="https://learning.postman.com/docs/sending-requests/intro-to-collections/">Postman collection docs.</a> After you successfully import the collection, you can see the query collection as below :
 </li>