fix: repair broken advisory URL in SECURITY.md (#44)

The advisory link was split across two lines and wrapped in a code span,
rendering as malformed text rather than a clickable link. Joined the URL
and used proper markdown link syntax. Pairs with enabling Private
Vulnerability Reporting in repo settings so external reporters can
actually submit advisories.

Closes #44

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: parth0025

SECURITY.md

@@ -12,9 +12,7 @@ Security fixes are applied on a **best-effort basis**, typically to the latest r
 
 All suspected security vulnerabilities **must be reported via GitHub Security Advisories**.
 
-➡️ Submit a report here:
-`https://github.com/aliansoftwareteam
-AlianHub-Project-Management-System/security/advisories/new`
+➡️ Submit a report here: [Report a vulnerability](https://github.com/aliansoftwareteam/AlianHub-Project-Management-System/security/advisories/new)
 
 Please include the following information (all are required):