Merge pull request #3275 from helmste/patch-14

Update post-upgrade-steps.md

Author: ShannonLeavitt

azure-stack/hci/upgrade/post-upgrade-steps.md

@@ -35,7 +35,7 @@ Before you begin, make sure that:
 
 Follow these steps on your client to connect to one of the servers of your Azure Stack HCI cluster.
 
-1. Run PowerShell as administrator on the client that you're using to connect to your cluster.
+1. Run PowerShell as Administrator on the client that you're using to connect to your cluster.
 2. Open a remote PowerShell session to a server on your Azure Stack HCI cluster. Run the following command and provide the credentials of your server when prompted:
 
    ```powershell
@@ -140,4 +140,4 @@ You're now ready to apply the solution upgrade.
 ## Next steps
 
 - [Optional: Install and enable Network ATC on your cluster.](./install-enable-network-atc.md)
-- [Learn how to assess the solution upgrade readiness.](./validate-solution-upgrade-readiness.md)
+- [Learn how to assess the solution upgrade readiness.](./validate-solution-upgrade-readiness.md)