Rename Compliance to compliance.md

[nholzberger97]

.md added

• [ ] You've read the Contributor Guide and Code of Conduct.
• [ ] You've included unit or integration tests for your change, where applicable.
• [ ] You've included inline docs for your change, where applicable.
• [ ] There's an open issue for the PR that you are making. If you'd like to propose a new feature or change, please open an issue to discuss the change or find an existing issue.

{Summary of the changes}

Description

{Detail}

Fixes #{issue number}