message: Fixing expired Slack invite link
diff: @@ -74,7 +74,7 @@ but just in case, it's worth checking out that list too!
  ## Initial Onboarding Steps
  -1. Firstly, [join our Slack](https://join.slack.com/t/reach4help/shared_invite/zt-cu9pfz83-pAIKBDha17r5~W4thvn2Bw). (This is our primary communication channel).
  +1. Firstly, [join our Slack](https://join.slack.com/t/reach4help/shared_invite/zt-dfw74tza-3kB82faJgZMZObQ_x~gadg). (This is our primary communication channel).
  1. Then fill out [our onboarding form](https://airtable.com/shr9WK5lm36pE3ESr).
  1. After that, it's time to join a team...
  