add: issue template

Author: kozistr

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,31 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: kozistr
+
+---
+
+## Describe the bug
+
+A clear and concise description of what the bug is.
+
+## To Reproduce
+
+* OS : (e.g. Linux, Windows, MacOS)
+* PyTorch version : (e.g. 2.0.1, 1.13, >=1.8, <1.10)
+* Python version :  (e.g. 3.8, 3.11
+* reproducible codes :
+
+## Log
+
+attach the complete log here! (highlighted texts or screenshots are welcome)
+
+## Expected behavior
+
+A clear and concise description of what you expected to happen.
+
+## Additional context
+
+Add any other context about the problem here.