docs(readme): drop sponsor badge — sidebar widget covers it

[rohitg00]

GitHub auto-renders the Sponsor this project widget in the right sidebar from .github/FUNDING.yml (Sponsor button + heart icon + "Learn more about GitHub Sponsors" link). The README badge was redundant noise on the top badge row.

Sidebar widget is the canonical surface — one path, one click.

-1 line across 1 file.

Summary by CodeRabbit

• Documentation
  • Removed GitHub Sponsors badge from the documentation header.

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Project	Deployment	Actions	Updated (UTC)
agentmemory	Ready	Preview, Comment	May 19, 2026 6:04pm

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: d4fe23c2-7399-43e9-b24e-b2fb989502f2

📥 Commits

Reviewing files that changed from the base of the PR and between 632fa35 and f6955c1.

📒 Files selected for processing (1)

• README.md

💤 Files with no reviewable changes (1)

• README.md

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📝 Walkthrough

Walkthrough

The GitHub Sponsors badge link is removed from the README.md header section. The surrounding badge layout and all other content remain unchanged.

Changes

README badge section

Layer / File(s)	Summary
Badge section cleanup README.md	GitHub Sponsors badge link removed from the header badges area; other badges and layout remain intact.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• rohitg00/agentmemory#545: Both PRs modify the README.md top header badge block—main PR removes the GitHub Sponsors badge link, while the retrieved PR adjusts/introduces Sponsor-related badge wiring in the same section.
• rohitg00/agentmemory#106: Both PRs make small, header-level changes to README.md's badge area (the main PR removes the GitHub Sponsors badge link; the other PR adds/adjusts badge layout and related badge content).

Poem

🐰 A badge takes flight, no sponsor link remains,
The header stays bright through simpler refrains,
One line removed, the readme looks clean,
The neatest of edits we've seen! ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies the primary change: removing the sponsor badge from the README. The reason provided (sidebar widget covers it) explains the motivation and confirms the change is intentional and necessary.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/drop-sponsor-readme-badge

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