[Page feedback]: Add instructions to end-user Slack page on how to join CNCF Slack

[jleonarddev]

URL

https://opentelemetry.io/community/end-user/slack-channel/

Description

Not able to join the slack channels. No instructions on how to gain access.

[tiffany76]

Thanks for reporting this @jleonarddev. We will update that page to include instructions on joining CNCF Slack.

In the meantime, you can visit https://communityinviter.com/apps/cloud-native/cncf to request an invitation.

[svrnm]

cc @open-telemetry/sig-end-user-approvers

[jleonarddev]

Thanks, @tiffany76. That was the piece I was missing.

[reese-lee]

Thank you for the feedback @jleonarddev, and thank you for the heads up on this @svrnm! I submitted this PR to clarify instructions.