⭐ Fix grouping in TOC

Author: Den Delimarsky

docs-ref-mapping/reference.yml

@@ -238,6 +238,11 @@
       landingPageType: Service
       children:
       - 'azure-mgmt-datalake-store*'
+    - name: Client
+      uid: azure.python.sdk.landingPage.services.Data.Lake.Store.Client
+      landingPageType: Service
+      children:
+      - 'azure-datalake-store*'
   - name: DevTest Labs
     uid: azure.python.sdk.landingPage.services.DevTest.Labs
     href: ~/docs-ref-services/devtest-labs.md
@@ -265,6 +270,11 @@
       landingPageType: Service
       children:
       - 'azure-mgmt-eventhub*'
+    - name: Client
+      uid: azure.python.sdk.landingPage.services.Event.Hub.Client
+      landingPageType: Service
+      children:
+      - 'azure-eventhub*'
   - name: Event Grid
     uid: azure.python.sdk.landingPage.services.Eventgrid
     href: ~/docs-ref-services/event-grid.md
@@ -279,6 +289,15 @@
       landingPageType: Service
       children:
       - 'azure-mgmt-eventgrid*'
+  - name: Functions
+    uid: azure.python.sdk.landingPage.services.Functions
+    landingPageType: Service
+    items:
+    - name: Client
+      uid: azure.python.sdk.landingPage.services.Functions.Client
+      landingPageType: Service
+      children:
+      - 'azure-functions*'
   - name: Hana on Azure
     uid: azure.python.sdk.landingPage.services.Hana
     landingPageType: Service
@@ -360,7 +379,7 @@
       uid: azure.python.sdk.landingPage.services.Mysql.Management
       landingPageType: Service
       children:
-      - 'azure-mgmt-rdbms-mysql*'
+      - 'azure-mgmt-rdbms*'
   - name: Network
     uid: azure.python.sdk.landingPage.services.Network
     href: ~/docs-ref-services/network.md