fix: improve documentation didprism resolver

[elribonazo]

Description:

Updating docs to improve how we configure a did resolver, publish dids onchain, and set a custom endpoint

Checklist:

• My PR follows the contribution guidelines of this project
• My PR is free of third-party dependencies that don't comply with the Allowlist
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I have checked the PR title to follow the conventional commit specification

[coveralls]

coverage: 71.433%. remained the same
when pulling f2c58ae on 468-documentation-didprism-resolver
into 223967d on main.

[yshyn-iohk]

🚀