fix: schedule YAML

colon in string broke YAML parsing

Author: phette23

_data/schedule.yml

@@ -161,7 +161,7 @@
   - presenter: Susan Hoover
     title: 30 Seconds of ASMR Cats?
   - presenter: Stefano Cossu
-    title: Pocket Archive: How Small Can You Go?
+    title: "Pocket Archive: How Small Can You Go?"
   - presenter: Cary Gordon
     title: 2027