chore: add Xen to security vulnerability HoF

Author: mehulmpt

README.md

@@ -8,7 +8,7 @@
 
 </div>
 
-With  <a href="https://codedamn.com/">codedamn</a>, we are creating a learning platform that is:
+With <a href="https://codedamn.com/">codedamn</a>, we are creating a learning platform that is:
 
 👉 Interactive and fun to learn.
 
@@ -18,27 +18,30 @@ With  <a href="https://codedamn.com/">codedamn</a>, we are creating a learning p
 
 **You** can contribute a lot to codedamn! If you have any feature request, bug report or anything where you see a potential improvement, [let us know](https://github.com/codedamn/core/issues)
 
-
 ## 🏆 Responsible vulnerability disclosure
 
 At codedamn, we take security of the product very seriously. If you find any security vulnerability, we would be happy to list your details on the Hall of Fame section of codedamn. If you're India based, we also offer swags as a reward.
 
 In any circumstances, DO NOT perform any action which might lead to any other users' data compromise, data leak while pentesting the platform. The final decision will be made by our team to determine the scope of the attack. The following attacks are out of scope:
 
-- Social engineering
-- Anything requiring physical access to user account
-- Only the following domains are under responsible vulnerability disclosure program: codedamn.com, creator.codedamn.com, mentor.codedamn.com
+-   Social engineering
+-   Anything requiring physical access to user account
+-   Only the following domains are under responsible vulnerability disclosure program: codedamn.com, creator.codedamn.com, mentor.codedamn.com
 
 [Report the vulnerability using this link](https://codedamn.com/contact)
 
 #### October 2021
 
-- [Tharun Raj](https://twitter.com/TharunRaj64)
+-   [Tharun Raj](https://twitter.com/TharunRaj64)
 
 #### June 2022
 
-- [Tharun Raj](https://twitter.com/TharunRaj64)
+-   [Tharun Raj](https://twitter.com/TharunRaj64)
+
+#### November 2022
+
+-   [Zack](https://github.com/X-Samurai)
 
-#### November 2022 
+#### June 2023
 
-- [Zack](https://github.com/X-Samurai)
+-   Xen Lee