Merge pull request #8693 from ajaysundark/master

create slack channel for node-readiness-controller

Author: k8s-ci-robot

communication/slack-config/sig-node/config.yaml

@@ -11,3 +11,4 @@ channels:
   - name: sig-node-sidecar
   - name: sig-node-swap
   - name: sig-node-wranglers
+  - name: sig-node-readiness-controller