Update about.mdx (#16911)

The "when you" at the end is duplicated.

src/content/docs/version-management/about.mdx

@@ -64,4 +64,4 @@ When your version is ready, you would then test and promote it through various e
 
 You can create a new version at any time by choosing to [**Clone**](/version-management/how-to/versions/#create-version) an existing version, which automatically copies over configurations from an existing version.
 
-Version configurations are applied to zone traffic when you when you [promote a version](/version-management/how-to/environments/#promote-a-version) to a new environment and then send traffic to that environment that matches the pattern specified in its [traffic filters](/version-management/reference/traffic-filters/).
+Version configurations are applied to zone traffic when you [promote a version](/version-management/how-to/environments/#promote-a-version) to a new environment and then send traffic to that environment that matches the pattern specified in its [traffic filters](/version-management/reference/traffic-filters/).