Add OWASP PTK to security tools list in README

Author: DenisPodgurskii

README.md

@@ -551,6 +551,7 @@
 - [OWASP ZAP](https://github.com/zaproxy/zaproxy) -  World’s most popular free web security tools and is actively maintained by a dedicated international team of volunteers
 - [SSTImap](https://github.com/vladko312/SSTImap) -  SSTImap is a penetration testing software that can check websites for Code Injection and Server-Side Template Injection vulnerabilities and exploit them, giving access to the operating system itself.
 - [Lonkero](https://github.com/bountyyfi/lonkero) - Enterprise-grade web vulnerability scanner with 60+ attack modules, built in Rust for penetration testing and security assessments.
+- [OWASP PTK](https://github.com/DenisPodgurskii/pentestkit) -  Browser-based vulnerability scanner for bug bounty and pentesting workflows, combining DAST, SAST, IAST, and SCA capabilities to detect runtime, source-level, interactive, and dependency-related security issues.
 
 
 ### Permutation