docs: convert environment variables section to unordered list
Description
Updates the Environment Variables section of the README (https://gitlab.com/gitlab-org/cli/#environment-variables) to use an unordered list rather than a directly-pasted code block. Will require some manual maintenance, but is easier to read in a browser.
Related Issues
Related to TW review of README (#1013 - closed) but does not resolve it.
How has this been tested?
Screenshots (if appropriate):
Types of changes
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Bug fix (non-breaking change which fixes an issue) -
New feature (non-breaking change which adds functionality) -
Breaking change (fix or feature that would cause existing functionality to change) -
Documentation -
Chore (Related to CI or Packaging to platforms)
Edited by Amy Qualls