Update gallery-image-not-usable.md

Author: sethmanheim

AKS-Arc/gallery-image-not-usable.md

@@ -46,7 +46,7 @@ When you run `az aksarc get-versions`, you see the following errors:
 This issue was fixed in [AKS on Azure Local, version 2507](/azure/azure-local/whats-new?view=azloc-2507&preserve-view=true#features-and-improvements-in-2507). Upgrade your Azure Local deployment to the 2507 build. 
 
 - Upgrade your Azure Local deployment to the 2507 build.
-- Once updated, confirm that the images have been downloaded successfully by running the `az aksarc get-versions` command.
+- Once updated, confirm that the images were downloaded successfully by running the `az aksarc get-versions` command.
 - For new AKS clusters: new AKS clusters should now be created successfully.
 - For scaling existing AKS clusters: scaling existing AKS clusters continues to encounter issues. Please file a support case.