add team members DRAFT

Signed-off-by: Batuhan Apaydın <batuhan.apaydin@trendyol.com>

Author: developer-guy

data/events/2025/istanbul/main.yml

@@ -65,22 +65,22 @@ team_members: # Name is the only required field for team members.
    - name: "Batuhan Apaydın"
      employer: "Trendyol"
      twitter: "developerguyba"
-     bio: ""
+     linkedin: "https://www.linkedin.com/in/bthnapydin/"
 
    - name: "Koray Oksay"
      employer: "Kubermatic"
      twitter: "korayoksay"
-     bio: ""
+     linkedin: "https://www.linkedin.com/in/korayoksay/"
 
    - name: "Derya Sezen"
      employer: "Kloia"
-     twitter: "DeryaDorian"
-     bio: ""
+     linkedin: "https://www.linkedin.com/in/deryasezen/"
+     twitter: derya_sezen
 
    - name: "Dogukan Turan"
      employer: "Logo"
      twitter: "imdotu"
-     bio: ""
+     linkedin: "https://www.linkedin.com/in/dogukanturan/"
 
 organizer_email: "istanbul@devopsdays.org" # Put your organizer email address here