Update SECURITY.md (#290)

Fix the title for reporting a vulnerability as a user.

## Fixes
#288
## Checklist
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- [x] 🤖 This change is covered by unit tests (if applicable).
- [x] 🤹 Manual testing has been performed (if necessary).
- [x] 🛡️ Security impacts have been considered (if relevant).
- [x] 📖 Documentation updates are complete (if required).
- [x] 🧠 Third-party dependencies and TPIP updated (if required).

SECURITY.md

@@ -12,7 +12,7 @@ This document outlines the security procedures and policies for the Open-CMSIS-P
 The Open-CMSIS-Pack cmsis-toolbox maintainers take security issues seriously and appreciate responsible disclosure. Your efforts to improve project security are highly valued.  
 
 We use GitHub's [private vulnerability reporting](https://docs.github.com/code-security/security-advisories/guidance-on-reporting-and-writing-information-about-vulnerabilities/privately-reporting-a-security-vulnerability) guidelines.
-To report a security issue, please raise a [Security Advisory](https://github.com/Open-CMSIS-Pack/cmsis-toolbox/security/advisories/new) and include:  
+To report a security issue, please click on [Report a vulnerability](https://github.com/Open-CMSIS-Pack/cmsis-toolbox/security/advisories/new) and include:  
 
 - A detailed description of the issue  
 - Steps to reproduce the vulnerability