Update WORKING_GROUPS.yaml

Co-authored-by: Lukasz Gornicki <[email protected]>

WORKING_GROUPS.yaml

@@ -102,7 +102,7 @@ working_groups:
     objectives: 
       - https://github.com/users/Amzani/projects/12/views/1
     github_team: developer_experience_wg
-     - name: Conference Coordination
+  - name: Conference Coordination
     description: The goal of the group is to plan, manage, and create a seamless way to enhance the conference experience.
     chairpersons: 
       name: Thulisile Sibanda