Update issue templates (#72)

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,32 @@
+---
+name: Bug report
+about: Create a bug report to help us improve
+title: "[BUG_TITLE]"
+labels: bug
+assignees: ''
+
+---
+
+# [BUG_TITLE]
+
+## Description
+
+A clear and concise description of what the bug is.
+
+## Expected behavior
+
+A clear and concise description of what you expected to happen.
+If applicable, add screenshots or code snippets to help explain your problem.
+
+## Environment
+ - OS: [_e.g._ `iOS`]
+ - Python version: [_e.g._ `3.8`]
+ - Package version: [_e.g._ `0.0.1`]
+
+## To Reproduce
+
+Please provide a minimal reproducible example.
+
+## Additional context
+
+If applicable, add any other context about the problem here.