chore: fix working groups file

WORKING_GROUPS.yaml

@@ -105,7 +105,7 @@ working_groups:
   - 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
+    - name: Thulisile Sibanda
       github: thulieblack
       slack: U03CNJPMT7C
     members:
@@ -126,6 +126,6 @@ working_groups:
         handle: wg-conference-coordination
         description: 'The Conference Coordination Working Group aims to plan, manage, and create a seamless way to enhance the conference experience. GitHub Project: https://github.com/orgs/asyncapi/projects/43/views/2'
     roadmap_url: https://github.com/orgs/asyncapi/projects/43/views/2
-        objectives: 
+    objectives: 
       - https://github.com/orgs/asyncapi/projects/43/views/2
     github_team: conference_coordination_wg