diff --git a/README.md b/README.md
index 29fdb9e..a92ea46 100644
--- a/README.md
+++ b/README.md
@@ -140,14 +140,30 @@ Rules are objects with two fields:
 
 ### Transformers
 
-
-
 #### Capitalize
 
+```json
+{
+    "Capitalize": {}
+}
+```
+
 Transforms string fields into Capital Case.
 
 #### Choice
 
+```json
+{
+    "Choice": {
+        "choices": [
+            "A",
+            "B",
+            "C"
+        ]
+    }
+}
+```
+
 Only accepts a pre-defined list of acceptable values and rejects the rest.
 
 #### Date