Fix broken image link in README.md

[hey-august]

Describe your changes

Issue ticket number and link

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Checklist

• Is it a bug fix
• Is a typo/documentation fix
• Is a feature enhancement
• It is a refactor
• Created tests that fail without the change (if possible)

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Documentation

Select exactly one:

• I added/updated documentation for this change
• Documentation is not needed for this change (explain why)

This is a simple fix to the repository readme. An image path (https://docs.netbird.io/docs-static/img/architecture/high-level-dia.png) currently 404s.

I searched the filename in the docs repository, and found that the image had been moved from architecture/ to the about-netbird/ directory. The Wayback Machine confirms that this image is the same as the relocated one.

This PR simply updates the now-broken image path.

Docs PR URL (required if "docs added" is checked)

Paste the PR link from https://github.com/netbirdio/docs here:

Quick link to updated readme preview

Summary by CodeRabbit

Release Notes

• Documentation
  • Updated image asset references in the project README for consistency with current documentation structure.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[CLAassistant]

All committers have signed the CLA.

[coderabbitai]

Walkthrough

Updated the documentation image source URL path in README.md from the /architecture/ directory to the /about-netbird/ directory. This is a path correction for the high-level architecture diagram hosted on the documentation site.

Changes

Cohort / File(s)	Change Summary
Documentation Image Path Update README.md	Updated image URL from docs-static/img/architecture/high-level-dia.png to docs-static/img/about-netbird/high-level-dia.png

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~1 minute

• Single documentation file with straightforward URL path update
• No code logic, configuration, or functional changes involved

Poem

🐰 A path through the docs, gently rearranged,
From architecture to about, the diagram has changed,
One hop, one hop, the URL's corrected,
The high-level view now properly redirected! ✨

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely summarizes the main change: fixing a broken image link in README.md, which aligns perfectly with the changeset.
Description check	✅ Passed	The description includes all key sections from the template and provides comprehensive context: change description, checklist completion, documentation justification, and supporting evidence via Wayback Machine link.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

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[coderabbitai]

Actionable comments posted: 1

📜 Review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between cb83b7c and 5d0d2d9.

📒 Files selected for processing (1)

• README.md (1 hunks)

🧰 Additional context used

🪛 markdownlint-cli2 (0.18.1)

README.md

116-116: Images should have alternate text (alt text)

(MD045, no-alt-text)

[coderabbitai]

🛠️ Refactor suggestion | 🟠 Major

Add alt text to image for accessibility.

The URL correction is good and fixes the broken link. However, the image is missing descriptive alt text, which is required for accessibility and flagged by markdown linting (MD045).

Apply this diff to add appropriate alt text:

-  <img src="https://docs.netbird.io/docs-static/img/about-netbird/high-level-dia.png" width="700"/>
+  <img src="https://docs.netbird.io/docs-static/img/about-netbird/high-level-dia.png" width="700" alt="NetBird high-level architecture diagram"/>

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	<img src="https://docs.netbird.io/docs-static/img/about-netbird/high-level-dia.png" width="700"/>
	<img src="https://docs.netbird.io/docs-static/img/about-netbird/high-level-dia.png" width="700" alt="NetBird high-level architecture diagram"/>

🧰 Tools

🪛 markdownlint-cli2 (0.18.1)

116-116: Images should have alternate text (alt text)

(MD045, no-alt-text)

🤖 Prompt for AI Agents

In README.md around line 116 the image tag lacks alt text which fails
accessibility/MD045; update the <img> tag to include a concise, descriptive alt
attribute (for example: alt="High-level NetBird architecture diagram") while
keeping the existing src and width attributes so the image remains the same
visually but is accessible to screen readers and passes linting.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud