Update stable-channel-1-7.md

Author: RDMacLachlan

hub/apps/windows-app-sdk/release-notes-archive/stable-channel-1-7.md

@@ -29,7 +29,7 @@ In an existing Windows App SDK app, you can update your Nuget package to 1.7.250
 
 For the updated runtime and MSIX, see [Downloads for the Windows App SDK](../downloads.md).
 
-### Version 1.7.5 (1.7.251014001 )
+### Version 1.7.5 (1.7.251014001)
 
 This is the latest service release for Version 1.7 of the Windows App SDK.