Update CD3ExcelTabs.md

Author: xs2suruchi

cd3_automation_toolkit/documentation/user_guide/learn_more/CD3ExcelTabs.md

@@ -2,13 +2,17 @@
 
 Click on the links below to know about the specifics of each tab in the excel sheet.
 
+#### IAM/Identity
+
  - [Compartments](/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#Compartments-Tab)
 
  - [Groups](/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#Groups-Tab)
 
  - [Policies](/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#Policies-Tab)
+#### Governance
 
  - [Tags](/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#Tags-Tab)
+#### Network
 
  - [VCNs](/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#a-VCNs-Tab)
 
@@ -19,15 +23,6 @@ Click on the links below to know about the specifics of each tab in the excel sh
  - [DHCP](/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#d-DHCP-Tab)
 
  - [Subnets](/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#e-Subnets-Tab)
- 
- - [DedicatedVMHosts Tab](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#dedicatedvmhosts-tab)
- 
- - [Instances Tab](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#instances-tab)
- 
- - [BlocksVolumes Tab](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#blocksvolumes-tab)
-
- - [FSS Tab](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#fss-tab)
- 
  - [LB-Hostname-Certs Tab](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#lb-hostname-certs-tab)
 
  - [Backend Set and Backend Servers Tab](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#backend-set-and-backend-servers-tab)
@@ -37,17 +32,35 @@ Click on the links below to know about the specifics of each tab in the excel sh
  - [PathRouteSet Tab](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#path-route-set-tab)
 
  - [LB-Listener Tab](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#lb-listeners-tab)
+
+#### Compute
 
+ - [DedicatedVMHosts Tab](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#dedicatedvmhosts-tab)
+ 
+ - [Instances Tab](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#instances-tab)
+ 
+#### Storage
+ 
+ - [BlocksVolumes Tab](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#blocksvolumes-tab)
+
+ - [FSS Tab](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#fss-tab)
+ 
+ 
+ #### Database
  - [DBSystems-VM-BM Tab](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#dbsystems-vm-bm-tab)
 
  - [ExaCS](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#exacs)
 
  - [ADB Tab](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#adb-tab)
 
+ #### Management Services
+ 
  - [Notifications Tab](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#notifications-tab)
 
  - [Alarms tab](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#alarms-tab)
 
  - [ServiceConnectors Tab](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#serviceconnectors-tab) 
 
+ #### Developer Services
+ 
  - [OKE Tab](https://github.com/oracle-devrel/cd3-automation-toolkit/blob/develop/cd3_automation_toolkit/documentation/user_guide/learn_more/Tabs.md#oke-tab)