Documentation, Use Cases & Code examples

Hello,
I am studying, as a possible solution, to integrate ION in our new software.
Is there more documentation for all the different use case examples? The [use cases document](https://w3c.github.io/did-use-cases/) is very interesting, but it's very very difficult to understand how to write the create/update call for each example.

Could you please help me?
Thank you very much.