Docs: reformat. (#5914)

### What problem does this PR solve?


### Type of change

- [x] Other (please describe):

.github/ISSUE_TEMPLATE/bug_report.yml

 title: "[Bug]: "
 labels: [bug]
 body:
-  - type: checkboxes
-    attributes:
-      label: Self Checks
-      description: "To make sure we get to you in time, please check the following :)"
-      options:
-        - label: I have searched for existing issues [search for existing issues](https://github.com/infiniflow/ragflow/issues), including closed ones.
-          required: true
-        - label: I confirm that I am using English to submit this report ([Language Policy](https://github.com/infiniflow/ragflow/issues/5910)).
-          required: true
-        - label: "Please do not modify this template :) and fill in all the required fields."
-          required: true
+- type: checkboxes
+  attributes:
+    label: Self Checks
+    description: "To make sure we get to you in time, please check the following :)"
+    options:
+      - label: I have searched for existing issues [search for existing issues](https://github.com/infiniflow/ragflow/issues), including closed ones.
+        required: true
+      - label: I confirm that I am using English to submit this report ([Language Policy](https://github.com/infiniflow/ragflow/issues/5910)).
+        required: true
+      - label: "Please do not modify this template :) and fill in all the required fields."
+        required: true
 - type: markdown
   attributes:
     value: "Please provide the following information to help us understand the issue."

.github/ISSUE_TEMPLATE/question.yml

 title: "[Question]: "
 labels: [question]
 body:
-  - type: checkboxes
-    attributes:
-      label: Self Checks
-      description: "To make sure we get to you in time, please check the following :)"
-      options:
-        - label: I have searched for existing issues [search for existing issues](https://github.com/infiniflow/ragflow/issues), including closed ones.
-          required: true
-        - label: I confirm that I am using English to submit this report ([Language Policy](https://github.com/infiniflow/ragflow/issues/5910)).
-          required: true
-        - label: "Please do not modify this template :) and fill in all the required fields."
-          required: true
+- type: checkboxes
+  attributes:
+    label: Self Checks
+    description: "To make sure we get to you in time, please check the following :)"
+    options:
+      - label: I have searched for existing issues [search for existing issues](https://github.com/infiniflow/ragflow/issues), including closed ones.
+        required: true
+      - label: I confirm that I am using English to submit this report ([Language Policy](https://github.com/infiniflow/ragflow/issues/5910)).
+        required: true
+      - label: "Please do not modify this template :) and fill in all the required fields."
+        required: true
 - type: markdown
   attributes:
     value: |