CI-fixes PR #3: Fix Markdown linting errors in the README files.

[bernhardkaindl]

CI-fixes PR #3: Fix Markdown linting errors in the README files

Commits in this PR:

• Commit from CI-fixes PR #2: Use Python 3.11,12,13 & document pytest venv setup #148: (dependency in context of the commits of this PR - please approve next)

  • CI PR #6: GitHub CI/tox: Update CI to use Python 3.11, 3.12 and 3.13
  • Fix test_bootloader.py/pylint: assertRegexpMatches renamed to assertRegex
  • CONTRIBUTING.md: Add venv setup and using pipx
  • tests/test_logger.py: Use pyfakefs: don't create a file in the host
  • .github/workflows/main.yml: Cleanup obsolete code for Python 2.7/3.8

• Commit from this PR:

  • CONTRIBUTING.md: Fix Markdown format for linting
  • README.md: Fix the Markdown format for linting and update it
  • README-Unicode.md: Fix Markdown format for linting and update it
  • .pre-commit-config.yaml: Replace mdformat check with markdownlint-cli

[coveralls]

Pull Request Test Coverage Report for Build 11862485265

Details

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• 12 unchanged lines in 4 files lost coverage.
• Overall coverage decreased (-0.009%) to 83.661%

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Files with Coverage Reduction	New Missed Lines	%
xcp/accessor.py	1	89.1%
xcp/xmlunwrap.py	2	92.31%
xcp/cpiofile.py	3	75.26%
xcp/compat.py	6	78.57%

Totals
Change from base Build 9109272969:	-0.009%
Covered Lines:	2806
Relevant Lines:	3354

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💛 - Coveralls