Created issue templates

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,22 @@
+---
+name: Bug report
+about: Create a report to help us improve NUSGet.
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+**Describe the bug**
+
+
+**To Reproduce**
+
+
+**Screenshots (optional)**
+
+
+**Computer (please complete the following information):**
+ - OS: 
+ - NUSGet version:
+ - Python version: