docs: Fix formatting of Markdown release notes. #2238

Job	Run time
Run linters	1m 11s
Lint GitHub Actions / 🔐 Analyze repo with zizmor 🌈	26s
ubuntu - Python 3.10	45s
ubuntu - Python 3.9	1m 10s
ubuntu - Python 3.11	42s
ubuntu - Python 3.13	48s
windows - Python 3.9	1m 53s
windows - Python 3.12	1m 38s
windows - Python 3.13	2m 10s
windows - Python 3.10	1m 21s
windows - Python 3.11	1m 19s
ubuntu - Python 3.14-dev	54s
ubuntu - Python 3.12	54s
windows - Python 3.14-dev	2m 12s
Check	14s
Publish packages to test.pypi.org	17s
Create GitHub release	28s
Publish packages to pypi.org	0s
	18m 22s

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