Add Documentation to Duck Endpoint

[William-McGonagle]

Idea

Our duck generator system is one of the best parts of our codebase. But, we've reached a bit of a problem. We need to document what is going on and how to use it. You can learn more about how to use it in some of our old closed issues- I can link some of them below.

If you want to help with this, drop us a comment and we will assign the issue to you. Cheers!

Todo

• [ ] Add to the OpenAPI file information about how to query the endpoints
• [x] Write a bit in the documentation about what the endpoints do and how to use them

[William-McGonagle]

You can check out the duck generator here, and the code for it is here.

[William-McGonagle]

Oh- and the issue that all of this was created with is #36.