Apply suggestions from code review

Co-authored-by: John Belamaric <[email protected]>

Author: jpbetz

keps/sig-architecture/4330-compatibility-versions/README.md

@@ -862,7 +862,7 @@ This section must be completed when targeting alpha to a release.
 
 ###### How can this feature be enabled / disabled in a live cluster?
 
-- [ ] Feature gate (also fill in values in `kep.yaml`)
+- [X] Feature gate (also fill in values in `kep.yaml`)
   - Feature gate name: CompatibilityVersions
   - Components depending on the feature gate:
     - kube-apiserver