[chore] Add issue templates

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Format to report a bug
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+<!-- if this is a question, consider using the discussion section of this repo -->
+
+## Description
+<!-- a detailed description of the bug -->
+
+## Step To Reproduce
+<!-- Steps or code snippet to reproduce the behaviour -->
+
+## Expected behaviour
+<!-- A clear and concise description of what you expected to happen -->
+
+## Actual behaviour
+<!-- what testify does -->

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,19 @@
+---
+name: Feature request
+about: Propose a new feature
+title: ''
+labels: enhancement
+assignees: ''
+
+---
+
+<!-- if this is a question, consider using the discussion section of this repo -->
+
+## Description
+<!-- A clear and concise description of what feature you are proposing -->
+
+## Proposed solution
+<!-- Optionally a suggested implementation -->
+
+## Use case
+<!-- What is the motivation? What workarounds have you used? -->