"Cleanup" markdown test names

[MichaReiser]

I don't know if rstest allows to do that but the generated test names are hard to read and the enumerating of the tests also leads to instable identifiers across runs (changing test names can be very annoying when bisecting a test failures).

It would be nice if we could:

• remove the path prefix
• remove the index
• remove the resources_md prefix
• remove the md postfix

Ideally, we would use the markdown title but that's probably not possible.

[MichaReiser]

I think removing the resources_md should be possible by using the #[base_dir = "/path/to/your/files"] attribute. dir-test allows customizing the test names

[Aditya-PS-05]

@MichaReiser , I think, Instead of removing resource_md, we should remove resource_.

Is this modification okay?

[MichaReiser]

@Aditya-PS-05 ahh, the md isn't the file extension but comes from mdtest. Yes, that looks better