Update NonGreenField.md

Author: xs2suruchi

cd3_automation_toolkit/documentation/user_guide/NonGreenField.md

@@ -55,6 +55,32 @@ c. Shell Script with import commands - tf_import_commands_`<resource>`_nonGF.sh
 >   Once the export (including the execution of **tf_import_commands_`<resource>`_nonGF.sh**) is complete, switch the value of **non_gf_tenancy** back to **false**. 
 >   This allows the Tool Kit to support the tenancy as Green Field from this point onwards.
 
+## Example - Export Identity
+Once the Docker container has been launched and connected to the OCI Tenancy, follow the below steps to quickly export Identity components from OCI.
+
+1. Use the excel [CD3-Blank-template](/cd3_automation_toolkit/example) and place it at the location _/cd3user/tenancies/<customer\_name>/_ which is also mapped to your local directory.
+
+2. Edit the _setUpOCI.properties_ at location:_/cd3user/tenancies /<customer\_name>/<customer\_name>\_setUpOCI.properties_ with appropriate values. 
+   - Update the _cd3file_ parameter to specify the CD3 excel sheet path.
+   - Set the _non_gf_tenancy_ parameter value to _true_. (for Non Greenfield Workflow.)
+     
+     <blockquote>For more information on types of Workflows, refer to <a href = /cd3_automation_toolkit/documentation/user_guide/Workflows.md> Automation Toolkit Workflows</a></blockquote>
+
+3. Change Directory to 'cd3_automation_toolkit' :
+    ```cd /cd3user/oci_tools/cd3_automation_toolkit/```
+    
+   and execute the _setupOCI.py_ file:
+   
+   ```python setUpOCI.py /cd3user/tenancies/<customer_name>/<customer_name>_setUpOCI.properties```
+ 4. Choose option 'Export Identity' from the displayed menu. Once the execution is successful, you will see:
+      <ul>
+      <li><b>Filled in tabs</b>-<i>Compartments, Groups, Polecies of Excel sheet</i></li>
+      <li><i>tf_import_commands_identity.sh</i></li>
+      <li><i>&lt;customer_name>_compartments.auto.tfvars, &lt;customer_name>_groups.auto.tfvars, &lt;customer_name>_policies.auto.tfvars</i></li>
+      </ul>
+   
+ 5. Execute _tf\_import\_commands\_identity.sh_ to start importing the identity components into tfstate file.
+ 6. Repeat the above process (except Step 5) to export other components from OCI.
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