Fill out pyproject.toml project.urls property

[rolandwalker]

Description

• update mycli.net to https protocol
• fill out other well-known labels

These values will be advertised on PyPi.

Reference https://packaging.python.org/en/latest/specifications/well-known-project-urls/#well-known-labels

Checklist

• I added this contribution to the changelog.md file.
• I added my name to the AUTHORS file (or it's already there).
• To lint and format the code, I ran

  uv run ruff check && uv run ruff format && uv run mypy --install-types .

[github-actions]

Findings (Correctness/Regression)

1. pyproject.toml: The URL labels are lowercase (homepage, documentation, source, issues, changelog). The packaging spec’s well-known labels are typically title-cased (e.g., Homepage, Documentation, Source, Bug Tracker/Tracker, Changelog). If PyPI treats labels case-sensitively, these may not get the intended well-known treatment or display ordering. Consider using the canonical labels from the spec to be safe.
   File: pyproject.toml

2. pyproject.toml: The documentation URL points to https://mycli.net/docs. Please confirm this path exists and is stable. If docs are elsewhere (e.g., README or GitHub Pages), use the accurate URL to avoid a broken link on PyPI.
   File: pyproject.toml

Tests / Edge Cases

• No tests needed for metadata-only changes.

If you want, I can suggest the exact label casing per the spec you referenced.