Update README.md (#133)

README.md

@@ -14,7 +14,7 @@ This project has three main goals:
 2. Reduce the amount of configuration required for great auth.
 3. Enable automation of RBAC configuration updates with CI/CD.
 
-**Want to learn more?** Reach out on [the Slack channel](https://fairwindscommunity.slack.com/messages/rbac-projects), send an email to `opensource@fairwinds.com`, or join us for [office hours on Zoom](https://fairwindscommunity.slack.com/messages/office-hours)
+**Want to learn more?** Reach out on [the Slack channel](https://fairwindscommunity.slack.com/messages/rbac-projects) ([request invite](https://join.slack.com/t/fairwindscommunity/shared_invite/zt-cxss92z7-YjfnJwpUwlviViBFjYV2gg)), send an email to `opensource@fairwinds.com`, or join us for [office hours on Zoom](https://fairwindscommunity.slack.com/messages/office-hours)
 
 ## An Example
 To fully understand how RBAC Manager works, it's helpful to walk through a simple example. In this example we'll have a single user, Joe, that needs `edit` access to the `web` namespace and `view` access to `api` namespace.