added doc to toc and index. Also updated the casing, so Search and Route are both capitilized as they are names for a service

Author: farah-alyasari

articles/azure-maps/how-to-use-best-practices-for-routing.docx

@@ -118,8 +118,10 @@ landingContent:
         links:
           - text: Search for an address (geocoding)
             url: how-to-search-for-address.md
-          - text: Best practices for search
+          - text: Best practices for Search
             url: how-to-use-best-practices-for-search.md
+          - text: Best practices for Route
+            url: how-to-use-best-practices-for-routing.md
           - text: Render custom data on static map
             url: how-to-render-custom-data.md
       - linkListType: reference

articles/azure-maps/index.yml

@@ -89,8 +89,10 @@
     items:
     - name: Search for an address
       href: how-to-search-for-address.md
-    - name: Best practices for search
+    - name: Best practices for Search
       href: how-to-use-best-practices-for-search.md
+    - name: Best practices for Route
+      href: how-to-use-best-practices-for-routing.md
     - name: Render custom data on static map
       href: how-to-render-custom-data.md
     - name: Request public transit routes