Update image alt text in release notes

Author: Stacyrch140

articles/cyclecloud/release-notes/8-6-4.md

@@ -29,4 +29,4 @@ ms.author: bewatrou
 ## Known Issues:
 
 * Configuring "CycleCloud" under the `Settings` page displays an error stating "Invalid form arguments". The workaround is to go to the Advanced tab and configure the `cyclecloud.default_authenticator`, `cyclecloud.eventgrid_topic`, `cyclecloud.single_cluster`, `cyclecloud.force_delete.vm`, and `cyclecloud.force_delete.vmss` settings directly, for example:
-![Setting workaround](settings-workaround-image.png)
+![Screenshot showing setting workaround.](settings-workaround-image.png)