Update testing.md
Delete a duplicated "that" in line 44.
@@ -41,6 +41,6 @@ are run through CI, then you will most likely want to test your changes end-to-e
**Disclaimer:**
-Note that that the cluster you create should have permission to pull images from the registry
+Note that the cluster you create should have permission to pull images from the registry
you are using to push the image to. You can either make your registry publically readable or give explicit permission
to your cluster's project service account.
