Updated Readme doc and image for po-deploy sub-project

Author: ganrad

extensions/po-deploy-azuredb-mysql/README.md

@@ -466,7 +466,7 @@ Open a terminal window and use SSH to login to the Linux VM (Bastion Host) which
  4 | po-service-YourInitial | Substitute your short initial in place of `YourInitial` | No
  5 | ACR_NAME | This is the ACR name, value which you saved in Step [1] | No
  6 | ACR Login Server | ACR login server, value which you saved in Step [2] | No
- 7 | ACR Admin Password | ACR Admin password, value which you saved in Step [3] | No
+ 7 | ACR Admin Password | ACR Admin password, value which you saved in Step [2] | No
 
  Open the ACI manifest file `./k8s-resources/create-aci.yaml` and update the values as shown in the screenshot below. Substitute the parameter values from the above table in the corresponding numbered placeholders in the manifest file.