[.github] Update templates.

Author: lgarron

.github/ISSUE_TEMPLATE/cubing_js_issue.md

@@ -0,0 +1,44 @@
+name: cubing.js issue
+description: Let us know an issue with <twisty-player> or cubing.js
+title: "[Bug] "
+labels: ["bug"]
+body:
+  - type: textarea
+    id: repro
+    attributes:
+      label: Steps to reproduce the issue
+      description: What were you trying to do?
+      placeholder: "1. Try to use `cubing.js` in a project\n2. ..."
+    validations:
+      required: true
+  - type: textarea
+    id: observed
+    attributes:
+      label: Observed behaviour
+      description: What issue did you observe?
+      placeholder: "Example: An error message: ..."
+    validations:
+      required: true
+  - type: textarea
+    id: expected
+    attributes:
+      label: Expected behaviour
+      description: What did you expect?
+      placeholder: "Example: No error."
+    validations:
+      required: true
+  - type: textarea
+    id: environment
+    attributes:
+      label: Environment
+      description: How are you running the code?
+      placeholder: "Examples: a specific version of `node`, a specific browser, etc."
+    validations:
+      required: true
+  - type: textarea
+    id: additional
+    attributes:
+      label: Additional info
+      description: Anything else that might be useful for us to know?
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/cubing_js_issue.yml

@@ -11,7 +11,10 @@ Steps to reproduce the behavior:
 
 1. Go to https://alpha.twizzle.net/
 2. Click on '....'
-3. See error
+
+**Observed behaviour**
+
+...
 
 **Expected behavior**
 A clear and concise description of what you expected to happen.