Merge pull request #63 from ewels/master

README.md

@@ -13,4 +13,4 @@ nf-core/test-datasets comes with documentation in the `docs/` directory:
 
 ## Support
 
-For further information or help, don't hesitate to get in touch on our [Slack](https://nfcore.slack.com) or [Click here for an invite](https://nf-core-invite.herokuapp.com/)
+For further information or help, don't hesitate to get in touch on our [Slack organisation](https://nf-co.re/join/slack) (a tool for instant messaging).