Add issues template

.github/ISSUE_TEMPLATE/documentation.yaml

@@ -0,0 +1,20 @@
+name: 📚 OpenDBM Documentation Issue
+description: Report a documentation issue related to https://aicure.com/opendbm/docs/stable/index.html
+
+body:
+- type: textarea
+  attributes:
+    label: 📚 The doc issue
+    description: >
+      A clear and concise description of what content in https://aicure.com/opendbm/docs/stable/index.html is an issue.
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Suggest a potential alternative/fix
+    description: >
+      Tell us how we could improve the documentation in this regard.
+- type: markdown
+  attributes:
+    value: >
+      Thanks for contributing 🎉!