update issue templates

Author: ruochenjia

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,49 @@
+name: "Bug report"
+labels: ["bug"]
+description: "Create a report to help us improve"
+
+body:
+  - id: description
+    type: textarea
+    attributes:
+      label: "Describe the bug"
+      description: "A clear and concise description of what the bug is."
+      placeholder: "Description"
+    validations:
+      required: true
+  - id: reproduce-steps
+    type: textarea
+    attributes:
+      label: "Steps to reproduce"
+      description: "Steps to reproduce the behavior:"
+      placeholder: >
+        1. Go to '...'
+        2. Click on '....'
+        3. Scroll down to '....'
+        4. See error
+    validations:
+      required: true
+  - id: expected-behavior
+    type: textarea
+    attributes:
+      label: "Expected behavior"
+      description: "A clear and concise description of what you expected to happen."
+      placeholder: "Expected behavior"
+    validations:
+      required: false
+  - id: additional-context
+    types: textarea
+    attributes:
+      label: "Additional context"
+      description: "Add any other context about the problem here."
+      placeholder: "Additional context"
+    validations:
+      required: false
+  - id: terms
+    type: checkboxes
+    attributes:
+      label: Code of Conduct
+      description: By submitting this issue, you agree to follow our [Code of Conduct](CODE_OF_CONDUCT.md).
+      options:
+        - label: I agree to follow this project's Code of Conduct
+          required: true

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,3 @@
+# Contributing Guideline
+
+TODO: Complete stub file

.github/ISSUE_TEMPLATE/custom.md

@@ -7,3 +7,5 @@
 | latest   | :white_check_mark: |
 
 ## Reporting a Vulnerability
+
+TODO: Complete stub file