Add API root path environment variable

[jamesfisher-geo]

Related Issue(s):

• 220

Description: This enables a user to define an API root path. This provides a workaround for the issue described here. The PR also includes a readme section about configuring the API environment variables.

PR Checklist:

• [ x ] Code is formatted and linted (run pre-commit run --all-files)
• [ x ] Tests pass (run make test)
• [ x ] Documentation has been updated to reflect changes, if applicable
• [x] Changes are added to the changelog

[jamesfisher-geo]

We might want to push a new version soon

Yeah, sounds good. I added another tiny PR around ca_certs