Update schedule.yaml

Fix typo

Author: aaarendt

book/schedule.yaml

@@ -47,7 +47,7 @@ tabs:
         title: Project Set up and Logistics
         description: Meet your teammates, figure out how/when you want to meet and communicate.
         leads:
-          - Mark Welden-SMith
+          - Mark Welden-Smith
           - Anthony Arendt
       - time: 1:30 - 3:00
         location: eScience, various workspaces