Update SECURITY.md

SECURITY.md

@@ -11,7 +11,7 @@ create the issue, affected versions, and, if known, mitigations for
 the issue.
 
 The easiest way to report a security issue is through
-[GitHub](https://github.com/canonical/operator/security/advisories/new). See
+[GitHub's security advisory for this project](https://github.com/canonical/operator/security/advisories/new). See
 [Privately reporting a security
 vulnerability](https://docs.github.com/en/code-security/security-advisories/guidance-on-reporting-and-writing/privately-reporting-a-security-vulnerability)
 for instructions.