Switch slack channel to #klog

Author: dims

README.md

@@ -44,7 +44,7 @@ Learn how to engage with the Kubernetes community on the [community page](http:/
 
 You can reach the maintainers of this project at:
 
-- [Slack](https://kubernetes.slack.com/messages/sig-architecture)
+- [Slack](https://kubernetes.slack.com/messages/klog)
 - [Mailing List](https://groups.google.com/forum/#!forum/kubernetes-sig-architecture)
 
 ### Code of conduct