update team.md with slack channel link

docs/contributing/team.md

@@ -2,7 +2,7 @@
 
 This step is optional if this is your first time fixing an issue and you want to try fixing an issue without this step.
 
-In the `people-depot` Slack channel, send an introductory message with your GitHub handle/username asking to be added to the Hack for LA peopledepot GitHub repository, have access to the Google Docs Drive, and Figma.
+In the [People-depot Slack channel](https://hackforla.slack.com/messages/people-depot/), send an introductory message with your GitHub `handle/username` asking to be added to the Hack for LA peopledepot GitHub repository, have access to the Google Docs Drive, and Figma.
 
 !!! note "Please do the following once you have accepted the GitHub invite (comes via email or in your GitHub notifications)"
     Make your own Hack for LA GitHub organization membership public by following this [guide](https://help.github.com/en/articles/publicizing-or-hiding-organization-membership#changing-the-visibility-of-your-organization-membership).