Update Kommunity link (#183)

The previous link has expired. Adding a never failing signup page: https://komodorkommunity.slack.com/

README.md

@@ -104,7 +104,7 @@ button at the bottom of the dialog:
 ## Support Channels
 
 We have two main channels for supporting the Helm Dashboard
-users: [Slack community](https://join.slack.com/t/komodorkommunity/shared_invite/zt-1dm3cnkue-ov1Yh~_95teA35QNx5yuMg) for general conversations
+users: [Slack community](https://komodorkommunity.slack.com) for general conversations
 and [GitHub issues](https://github.com/komodorio/helm-dashboard/issues) for real bugs.
 
 ## Contributing