Added bug report template

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,37 @@
+---
+name: Bug report
+about: Create a report to help us improve
+labels: 
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Explain how the issue can be reproduced.
+<!-- Does this happen with a specific website? If that's the case, it would be
+helpful if you can mail me the target at s0md3v@gmail.com or dm me at https://twitter.com/s0md3v -->
+
+**Screenshots**
+If applicable, add screenshots or paste terminal output to help explain your problem.
+Feel free to hide sensitive information like the URL of the target.
+
+**Potential cause or fix**
+Do you know what could be causing the problem or how to fix it?
+
+**Environment:**
+ - OS: [e.g. Kali Rolling 2018.2]
+ - Browser [e.g. Firefox 60.2]
+ - Python version [e.g. 3.7]
+
+**Some Questions**
+<!-- check the boxes with "x" like [x] -->
+
+- [ ] I am using the latest version of XSStrike.
+- [ ] I installed the dependecies using `pip3` instead of `pip`
+- [ ] I have read the documentation before submitting this issue.
+- [ ] I have checked the other issues to see if someone reported this before.
+
+**Other comments**
+Do you have something else to say?