Fix order, and description/placeholders

Signed-off-by: Sanjula Ganepola <sanjulagane@gmail.com>

.github/ISSUE_TEMPLATE/3-documentation_issue.yml

@@ -0,0 +1,15 @@
+name: 📖 Documentation Issue
+description: Share an issue to fix or enhancement to make in the documentation.
+labels:
+  - 'documentation'
+body:
+  - type: textarea
+    id: description
+    attributes:
+      label: Description
+      description: |
+        Describe the issue to fix or enhancement to make in the documentation.
+      placeholder: |
+        Description
+    validations:
+      required: true