Update README.md

Author: CBP1012

documentation/user-guides/design-patterns/README.md

@@ -3,3 +3,10 @@ This folder contains common CCO design patterns.
 Each entry includes a mermaid graph, a visualization of that graph, a description of competency questions answered, and a sparql query to support the competency questions.
 
 Users are encouraged to reuse these design patterns in their knowledge graphs to speed up data mapping and querying while ensuring greater consistency and interoperability across knowledge graphs.
+
+## Folder Structure
+
+| Folder Name     | Description                                |
+|------------------|--------------------------------------------|
+| Design Pattern 1           | Document Field         |
+