docs: add items/quantities/rates to readme

Maas Lalani created

Change summary

README.md | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

Detailed changes

README.md 🔗 

@@ -56,7 +56,9 @@ Or, save repeated information with JSON / YAML:
     "from": "Dream, Inc.",
     "to": "Imagine, Inc.",
     "tax": 0.13,
-    "rates": 25
+    "items": ["Yellow Rubber Duck", "Special Edition Plaid Rubber Duck"],
+    "quantities": [5, 1],
+    "rates": [25, 25],
 }
 ```