Page History

...

1. Enter the name of the event handler (in this case 'Update Github Status')
2. Enter the sequence in which you wish this event handler to be run.  In our case this is the first event handler so we will leave the default of 1
3. From the type dropdown select 'Update GitHub Status'

Select 'Update GitHub Status' tab from the top of the dialogue

Event Handler Name

Friendly name for the event Handler (this will be visible in the 'Events' section of the website)

...