Add a new contribex-leads Slack usergroup

Signed-off-by: Nabarun Pal <pal.nabarun95@gmail.com>

Author: palnabarun

communication/slack-config/usergroups.yaml

@@ -20,6 +20,18 @@ usergroups:
  - "Sujay Pillai"
  - TaoBeier
 
+ - name: contribex-leads
+ long_name: SIG Contributor Experience Leads
+ description: SIG Contributor Experience Leads group.
+ channels:
+ - sig-contribex
+ members:
+ - kaslin
+ - MadhavJivrajani
+ - mfahlandt
+ - palnabarun
+ - Priyankasaggu11929
+
  - name: contributor-comms
  long_name: Contributor Communications
  description: Contributor Communications group.