Added text saying example data

README.md

@@ -58,6 +58,8 @@ http://localhost:8080/order/              Method = ["GET"]
 
 http://localhost:8080/order/              Method = ["POST"]
 
+Example JSON data
+
 ```JSON
 {
     "products": [
@@ -69,6 +71,9 @@ http://localhost:8080/order/              Method = ["POST"]
 ```
 
 http://localhost:8080/order/payment Method = ["POST"]
+
+Example JSON data
+
 ```JSON
 {
     "order_id": 1,