add issue templates (#288)

Author: lenkan

.github/ISSUE_TEMPLATE/bug.yaml

@@ -0,0 +1,34 @@
+name: "Bug report"
+description: Bug report template
+title: "Bug: short description"
+labels: ["bug", "triage"]
+body:
+  - type: input
+    id: version
+    attributes:
+      label: Version
+    validations:
+      required: true
+  - type: input
+    id: Evnironment
+    attributes:
+      label: Environment
+      description: (OS, Node.js version)
+  - type: textarea
+    id: expected-behavior
+    attributes:
+      label: Expected behavior
+    validations:
+      required: true
+  - type: textarea
+    id: actual-behavior
+    attributes:
+      label: Actual behavior
+    validations:
+      required: true
+  - type: textarea
+    id: steps-to-reproduce
+    attributes:
+      label: Steps to reproduce
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/feature.yaml

@@ -0,0 +1,11 @@
+name: "Feature request"
+description: Feature request template
+title: "Feature request: short description"
+labels: ["feature request", "triage"]
+body:
+  - type: textarea
+    id: desired-behavior
+    attributes:
+      label:  Feature request description/rationale
+    validations:
+      required: true