docs: link to scanner guide in README

Author: internet-dot

README.md

@@ -211,6 +211,11 @@ You can embed a trust badge in your plugin's README:
 
 Replace `OWNER%2FREPO` with your plugin's GitHub owner and repo name (URL-encoded slash). Metrics available: `trust`, `security`. Styles: `flat`, `flat-square`, `plastic`, `for-the-badge`, `social`.
 
+## Plugin Quality
+
+If you received a scanner report on your repo, check the [Scanner Guide](SCANNER_GUIDE.md) for setup instructions, common fixes, and CI setup.
+
+
 ## Contributing
 
 Contributions welcome! Please read the [contribution guidelines](CONTRIBUTING.md) first.