Create question.yml

.github/ISSUE_TEMPLATE/question.yml

+name: question
+description: concise description of the problem.
+title: "[Question]: "
+labels: [question]
+assignees:
+  - caifeizhi
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Before asking a question, make sure you have:
+        * Searched [GitHub issue](https://github.com/oceanbase/oceanbase/issues)
+        * Searched [documentation](https://open.oceanbase.com)
+  - type: textarea
+    attributes:
+      label: Describe your question
+      description: better to provide some pictures.
+    validations:
+      required: true