Merge pull request #78 from prestodb/update-links

Update links to mailing list, calendar, and Slack

README.md

@@ -1,6 +1,6 @@
 # Presto Technical Steering Committee (TSC)
 
-The Presto TSC will be responsible for all technical oversight of the open source Project. 
+The Presto TSC will be responsible for all technical oversight of the open source Project.
 
 ## 2021 Elections
 
@@ -29,19 +29,17 @@ The Presto Technical Charter is located in [CHARTER.md](CHARTER.md)
 
 ## Collaboration Tools
 
-### Mailing List
+### Public Mailing List
 
-The TSC for Presto Foundation can be reached at their [mailing list](https://lists.prestodb.io/g/presto-tsc).
+The TSC for Presto Foundation can be reached at their [mailing list](https://lists.prestodb.io/g/presto-dev). This list is intended for public technical discussions.
 
 ### Slack
 
-The Presto Foundation maintains a [Slack Workspace](https://join.slack.com/t/prestodb/shared_invite/enQtNTQ3NjU2MTYyNDA2LTYyOTg3MzUyMWE1YTI3Njc5YjgxZjNiYTgxODAzYjI5YWMwYWE0MTZjYWFhNGMwNjczYjI3N2JhM2ExMGJlMWM) for communication and collaboration. The [Presto Foundation Slack Workspace](https://join.slack.com/t/prestodb/shared_invite/enQtNTQ3NjU2MTYyNDA2LTYyOTg3MzUyMWE1YTI3Njc5YjgxZjNiYTgxODAzYjI5YWMwYWE0MTZjYWFhNGMwNjczYjI3N2JhM2ExMGJlMWM) is open for anyone to join. 
-
-Once you join the The [Presto Foundation Slack Workspace](https://join.slack.com/t/prestodb/shared_invite/enQtNTQ3NjU2MTYyNDA2LTYyOTg3MzUyMWE1YTI3Njc5YjgxZjNiYTgxODAzYjI5YWMwYWE0MTZjYWFhNGMwNjczYjI3N2JhM2ExMGJlMWM), you can participate in any public channels.
+The Presto Foundation maintains a [Slack Workspace](https://slack.prestodb.io) for communication and collaboration. The Slack is open for anyone to join and participate in the public channels.
 
 ### Calendars and Meetings
 
-The Presto Foundation maintains a [public calendar](https://calendar.google.com/calendar/embed?src=linuxfoundation.org_vrjlva5b0u73ps75fvnv5sasi4%40group.calendar.google.com&ctz=America%2FChicago) for TSC meetings. These meetings are open for anyone to join.
+The Presto Foundation maintains a [public calendar](https://calendar.prestodb.io) for TSC meetings. These meetings are open for anyone to join.
 
 ### CLA