Howdy Heidi,
You did awesome so far, it look like you have the right setup going. I just put an override in the same place and the change is showing up. I can think of a few things that might be hiding your changes from you though:
– There are some if/else blocks within that file. Perhaps your changes are within one of those, and not showing up because the conditions are not met.
– If there are no posts for a venue this file will not really show much. Perhaps there are no posts for that venue?
– Maybe the changes are going through but are being hidden by some CSS. Have you double checked the source of the page?
Please let me know if one of those helps. I sure hope so, or else this would be quite puzzling. Thanks for posting!
– Brook