Update community-activities.mdx (#1460)

Author: cmaureir

src/content/pages/community-activities.mdx

@@ -24,8 +24,8 @@ This year, we are dedicating a two-hour slot in the Open Spaces to all community
 importantly, it's a chance to explore how the EuroPython Society can support you in achieving your
 goals and addressing your current challenges.
 
-* Room: TBD
-* Time: TBD
+* Room: 223+224
+* Time: Friday 18th, 12:00h - 13:00h
 
 ![](./images/pyo-open-space.jpg)