Update expectations_open_source_contributors.md

Author: rowlandm

expectations_open_source_contributors.md

@@ -12,6 +12,7 @@ We wanted to clarify the expectations for those students who cannot get course c
 8. We expect that you will tell us if something is wrong so that we can help appropriately.
 9. We want you to have fun, learn new things, and feel part of a community! Please let us know if you aren't feeling this.
 10. We will provide you with a "Certificate of Contribution" that is a permanent record of your contribution.
+11. We would like you to commit to 6 hours per week for the 12 weeks of the internship.
 
 ## Comparison to the Student Internship with course credit