add 'securitum/research'

- signed-off-by: trimstray <trimstray@gmail.com>

README.md

@@ -1158,6 +1158,7 @@ CyberTalks</b></a> - talks, interviews, and article about cybersecurity.<br>
 &nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/OWASP/owasp-mstg"><b>MSTG</b></a> - The Mobile Security Testing Guide (MSTG) is a comprehensive manual for mobile app security testing.<br>
 &nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/sdcampbell/Internal-Pentest-Playbook"><b>Internal-Pentest-Playbook</b></a> - notes on the most common things for an Internal Network Penetration Test.<br>
 &nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/streaak/keyhacks"><b>KeyHacks</b></a> - shows quick ways in which API keys leaked by a bug bounty program can be checked.<br>
+&nbsp;&nbsp;:small_orange_diamond: <a href="https://github.com/securitum/research"><b>securitum/research</b></a> - various Proof of Concepts of security research performed by Securitum.<br>
 </p>
 
 ##### :black_small_square: Backdoors/exploits