Fix SH v16 release notes path

[heliocodacy]

👀 Live preview

🚧 To do

• If relevant, include the Jira issue key at the end of the pull request title
• Perform a self-review of the changes
• Fix any issues reported by the CI/CD

[github-actions]

Overall readability score: 54.22 (🟢 +0)

File	Readability
index.md	75.2 (🔴 -0.39)

View detailed metrics

🟢 - Shows an increase in readability
🔴 - Shows a decrease in readability

File	Readability	FRE	GF	ARI	CLI	DCRS
index.md	75.2	86.84	9.29	12.2	8.76	6.17
	🔴 -0.39	🟢 +0	🟢 +0.01	🟢 +0	🔴 -0.29	🟢 +0

Averages:

	Readability	FRE	GF	ARI	CLI	DCRS
Average	54.22	43.03	10.93	12.32	12.21	8
	🟢 +0	🟢 +0	🟢 +0	🟢 +0	🟢 +0	🟢 +0

View metric targets

Metric	Range	Ideal score
Flesch Reading Ease	100 (very easy read) to 0 (extremely difficult read)	60
Gunning Fog	6 (very easy read) to 17 (extremely difficult read)	8 or less
Auto. Read. Index	6 (very easy read) to 14 (extremely difficult read)	8 or less
Coleman Liau Index	6 (very easy read) to 17 (extremely difficult read)	8 or less
Dale-Chall Readability	4.9 (very easy read) to 9.9 (extremely difficult read)	6.9 or less

[codacy-production]

Codacy's Analysis Summary

0 new issue (≤ 0 minor issue)
0 new security issue

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[Copilot]

Pull request overview

This pull request adds the navigation entry for the Codacy Self-hosted v16.0.0 release notes to the documentation. The changes ensure the new version's release notes are accessible through the site's navigation structure and index page.

Changes:

• Added v16 navigation section to mkdocs.yml with reference to the v16.0.0 release notes file
• Added v16 section to the release notes index page with a link to the v16.0.0 release notes

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
mkdocs.yml	Added v16 navigation entry in the Self-hosted release notes section, placing it at the top of the version list
docs/release-notes/index.md	Added v16 section to the release notes index with a link to the v16.0.0 release notes document

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