update(docs): add specials tags

Author: matochu

docs/modules/ROOT/pages/write-through-cache-serverless-mapstore.adoc

@@ -7,6 +7,8 @@
 :page-serverless: true
 :description: In this tutorial, you'll build an application that writes changes made to a map back to MongoDB Atlas.
 :github-directory: https://github.com/hazelcast-guides/write-through-cache-mongodb-mapstore
+:cloud-category: Favorites
+:cloud-order: 1
 
 {description}
 
@@ -282,4 +284,4 @@ Use these resources to continue learning:
 
 - xref:cloud:ROOT:maven-plugin-hazelcast.adoc[]
 
-- link:https://docs.hazelcast.org/docs/latest/javadoc/com/hazelcast/map/MapStore.html[`MapStore`] API reference
+- link:https://docs.hazelcast.org/docs/latest/javadoc/com/hazelcast/map/MapStore.html[`MapStore`] API reference