Merge pull request #47 from code4lib/fix-typos

Fixed group header typo 🛠️📝

Author: triplingual

_data/schedule.yml

@@ -155,7 +155,7 @@
   time: 14:30-15:35
 
 - timeImg: 3.50.png
-  title: Group 2: 80 minutes (5 talks)
+  title: Group 3: 80 minutes (5 talks)
   day1: true
   groupId: 3
   time: 15:50-17:00