fix spelling of api-machinery so bot matches well

Author: deads2k

keps/sig-api-machinery/4346-informer-metrics/README.md

@@ -99,6 +99,9 @@ tags, and then generate with `hack/update-toc.sh`.
       - [Integration tests](#integration-tests)
       - [e2e tests](#e2e-tests)
   - [Graduation Criteria](#graduation-criteria)
+    - [Alpha](#alpha)
+    - [Beta](#beta)
+    - [GA](#ga)
   - [Upgrade / Downgrade Strategy](#upgrade--downgrade-strategy)
   - [Version Skew Strategy](#version-skew-strategy)
 - [Production Readiness Review Questionnaire](#production-readiness-review-questionnaire)

keps/sig-api-machinery/4346-informer-metrics/kep.yaml

@@ -2,7 +2,7 @@ title: Add Informer Metrics
 kep-number: 4346
 authors:
   - "@chenk008"
-owning-sig: api-machinery
+owning-sig: sig-api-machinery
 participating-sigs: []
 status: implementable
 creation-date: 2023-11-27