update KEP metadata to match new template.

Author: jiahuif

keps/sig-cloud-provider/2436-controller-manager-leader-migration/kep.yaml

@@ -1,18 +1,42 @@
-title: Cloud Controller Manager Migration
-kep-number: 991
+title: Controller Manager Leader Migration
+kep-number: 2436
 authors:
   - "@andrewsykim"
+  - "@jiahuif"
 owning-sig: sig-cloud-provider
 participating-sigs:
   - sig-api-machinery
 reviewers:
   - "@cheftako"
   - "@nckturner"
+  - "@andrewsykim"
 approvers:
-  - "@lavalamp"
-editor: TBD
+  - "@cheftako"
+prr-approvers:
+  - "@deads2k"
 creation-date: 2019-04-22
-last-updated: 2021-02-08
 status: implementable
 see-also:
   - "/keps/sig-cloud-provider/20180530-cloud-controller-manager.md"
+
+# The target maturity stage in the current dev cycle for this KEP.
+stage: alpha
+
+# The most recent milestone for which work toward delivery of this KEP has been
+# done. This can be the current (upcoming) milestone, if it is being actively
+# worked on.
+latest-milestone: "v1.21"
+
+# The milestone at which this feature was, or is targeted to be, at each stage.
+milestone:
+  alpha: "v1.21"
+  beta: "v1.22"
+  stable: "v1.23"
+
+# The following PRR answers are required at alpha release
+# List the feature gate name and the components for which it must be enabled
+feature-gates: []
+disable-supported: false
+
+# The following PRR answers are required at beta release
+metrics: []