Download it and you can edit it. There is no way to edit it directly in ORDS.
Or just wait for apex 18 release.
More infos here
Really wonder why the descrption is not pulled from USERS_ORDS_XXX views !!??
- Define your own uri template
- make it point to a PL/SQL procedure
The PL procedure would then
- access the ORDS open-api-catalog
- get the JSON out of it
- Manipulate it and send it back.
Has anyone tested if it comes out of the box in a newer release?
We have it on our to-do list to improve the dictionary so you can add the doc to your REST service and have the Open-API json out just as you want.
Just didn't make the list for 18.2