More detailed usage

[antonio-ivanovski]

I am having hard time understanding and making implementation configuration for my implementation.

Some pain points so far:

• The configuration fields have no documentation at all, not sure what should be content. I need to go through the implementation and find the "documentation" myself.
• I am trying to make configuration for https://github.com/w3c/vc-bitstring-status-list-test-suite only for the verifier cases. For this Digital Bazaar is probably trying to issue the VCs and it is failing at getting the env var for KEY_SEED_DB. The particular painpoint is here that there is no guide on setup and how the test will work.