diff --git a/README.md b/README.md
index 8b4d829..e57ba3a 100644
--- a/README.md
+++ b/README.md
@@ -57,10 +57,11 @@ The format supports the following data types:
 - Arrays may only contain one datatype at a time.
 - Arrays may be of any positive dimension.
 - Arrays may be of any positive length.
+- Arrays must be consistent in length within each dimension.
 - Arrays may be empty.
 - Example: `array = [5, 6, 10]`
 - Example: `array2d = [[5, 8], [9, 7], [23, 47]]`
-- Example: `array2d = [[9], [50, 3], [54, 12, 46, 37]]`
+- Example: `array3d = [[[5, 8], [9, 7], [8, 1]], [[9, 1], [1, 4], [7, 6]]]`
 - Example: `emptyArray = []`
 
 ### Boolean
@@ -110,6 +111,7 @@ my-value = 5                 | Invalid character in key.
 
 [MyOtherSection.Subsection]  | "MyOtherSection" has not been defined before.
 myValue = 16 # a comment     | Inline comments are not allowed.
+`array2d = [[9], [50, 3]]`   | Lengths of the arrays in the same dimension don't match.
 
 [MyOtherSection]
 myArray = [                  | Values may not span over multiple lines.