:bug: Broken link in a2a/a2a_contact_extractor/README.md: https://www.askmarvin.ai/

[clawgenti]

Describe the bug

Broken link detected by automated link health scan.

Repo: rossoctl/examples
File: a2a/a2a_contact_extractor/README.md
Broken URL: https://www.askmarvin.ai/
HTTP Status: unreachable
First detected: 2026-07-29
Scan ID: 2026-07-29-001

Steps To Reproduce

1. Open https://github.com/rossoctl/examples/blob/main/a2a/a2a_contact_extractor/README.md
2. Click or follow the link to https://www.askmarvin.ai/
3. Observe unreachable error

Expected Behavior

The link should resolve to valid documentation.

Additional Context

Category: external
Detected by: OpenClaw Link Health Scanner (cron: link-health-scanner)