Modified README.MD as per changes discussed on #2062 (#2066)

Signed-off-by: Vikas Saxena <[email protected]>

README.md

@@ -91,5 +91,6 @@ Please check [CONTRIBUTING.md](CONTRIBUTING.md) and the [Developer Guide](docs/d
 
 ## Community
 
-* Join our [Kubeflow Slack Channel](https://kubeflow.slack.com/archives/C06627U3XU3)
-* Check out [who is using the Kubernetes Operator for Apache Spark](docs/who-is-using.md).
+* Join the [CNCF Slack Channel](https://www.kubeflow.org/docs/about/community/#kubeflow-slack-channels) and then join ```#kubeflow-spark-operator``` Channel.
+* Check out our blog post [Announcing the Kubeflow Spark Operator: Building a Stronger Spark on Kubernetes Community](https://blog.kubeflow.org/operators/2024/04/15/kubeflow-spark-operator.html)
+* Check out [who is using the Kubernetes Operator for Apache Spark](docs/who-is-using.md).