added eventbrite key

index.md

@@ -17,7 +17,7 @@ instructor: ["instructor one", "instructor two"] # boxed, comma-separated list o
 helper: ["helper one", "helper two"]     # boxed, comma-separated list of helpers' names, like ["Marlyn Wescoff", "Fran Bilas", "Ruth Lichterman"]
 email: ["[email protected]"]    # boxed, comma-separated list of contact email addresses for the host, lead instructor, or whoever else is handling questions, like ["[email protected]", "[email protected]", "[email protected]"]
 collaborative_notes: https://docs.google.com/document/d/11Ugq4uDbBvx1YnNdaVJajFRWr21xTQ31vD72UATHOB8
-eventbrite:           # optional: alphanumeric key for Eventbrite registration, e.g., "1234567890AB" (if Eventbrite is being used)
+eventbrite:      910047856637     # optional: alphanumeric key for Eventbrite registration, e.g., "1234567890AB" (if Eventbrite is being used)
 ---
 
 {% comment %} See instructions in the comments below for how to edit specific sections of this workshop template. {% endcomment %}