Update schedule.md

Author: vshahrez

src/schedule.md

@@ -22,12 +22,13 @@ Each day consists of a morning session from 10am to 12pm and an afternoon sessio
 
 ## Thursday
 - Morning Session (10:00-12:00)
-  -Free morning for group presentations 
+  -Free morning for group presentations (10:30-12:00)
+  - Biological background for advanced lab (11:30-12:00)
 - Afternoon session (2:00-4:00)
   - Advanced Python and R computer lab
 
 ## Friday
-- Morning Session (10:00-12:00)
+- Morning Session (10:00-12:30)
   - Student presentations
 - Afternoon Session (2:00-4:00)
   - Research talks