Use GitHub issue templates (#3133)

https://docs.github.com/en/communities/using-templates-to-encourage-useful-issues-and-pull-requests/configuring-issue-templates-for-your-repository

.github/ISSUE_TEMPLATE/documentation.yml

@@ -0,0 +1,25 @@
+name: Documentation
+description: Found a typo or something that needs clarification?
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to open an issue and help make the docs better.
+
+  - type: textarea
+    id: motivation
+    attributes:
+      label: Motivation
+      description: |
+        Why should we update our docs?
+    validations:
+      required: true
+
+  - type: textarea
+    id: suggestion
+    attributes:
+      label: Suggestion
+      description: |
+        What should we do instead?
+    validations:
+      required: true