Add new issue template

.github/ISSUE_TEMPLATE/3_question.yml

@@ -0,0 +1,24 @@
+name: Ask a question
+description: |
+  If you have any questions, feel free to ask
+labels: 'help-wanted'
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thank you for using Flutter Quill!
+
+  - type: checkboxes
+    attributes:
+      label: Is there an existing issue for this?
+      options:
+      - label: I have searched the [existing issues](https://github.com/singerdmx/flutter-quill/issues)
+        required: true
+  - type: textarea
+    attributes:
+      label: The question
+      description: Please explain your question here
+      placeholder: |
+        How do I save the images of Quill Editor?
+    validations:
+      required: true