Add Community Call special edition (#197)

Author: clementbiron

content/community/reference/community-call.md

@@ -6,6 +6,10 @@ title: Community call
 
 The Open Terms Archive Community Call is a monthly online meeting for and by the community.
 
+## Special edition! Friday, Sept 12 08:00 UTC
+
+We’re back from summer break and kicking off a new season with a special edition of the community call. Join us to meet new team members, hear about product updates from the summer, and discover what’s coming next for Open Terms Archive.
+
 ## Ambitions
 
 - **Get up-to-date**: the core team will open the call by highlighting the latest features and updates.