Adding reddit troubleshooting link for application (#463)

README.md

@@ -92,6 +92,10 @@ In case you are stuck with any of the steps or understanding anything related to
 2. [Overview of Owasp-VulnerableApp - Blogspot post](https://hussaina-begum.blogspot.com/2020/10/an-extensible-vulnerable-application.html)
 3. [Introduction to Owasp VulnerableApp by Kenji Nakajima](https://jpn.nec.com/cybersecurity/blog/220520/index.html)
 
+### Troubleshooting references
+
+1. [Reddit exploiting SQL Injection Vulnerability](https://www.reddit.com/r/hacking/comments/11wtf17/owasp_vulnerableappfacade_sql_injection/)
+
 ### Readme in other languages
 
 1. [Russian](https://github.com/SasanLabs/VulnerableApp/tree/master/docs/i18n/ru/README.md)