diff --git a/README.md b/README.md
index 463ec1f..0dd7c0f 100644
--- a/README.md
+++ b/README.md
@@ -7,12 +7,12 @@ Combinations [![Build Status](https://travis-ci.org/jgallen23/combinations.svg?b
 
 # Usage
 
-    combinations(array[, min_output_array_size])
+    combinations(array[, min, max])
 
 *   takes in an array, and outputs an array of arrays, containing all possible combinations of values in the original array.
 *   combinations are of all sizes: all combinations of one element, and all combinations of 2 elements, and so on
-*   minimum number of elements in a combination can be specified (min_output_array_size)
-*   maximum number of elements in a combination can be also specified
+*   `min` sets minimum number of elements in a combination
+*   `max` sets maximum number of elements in a combination
 *   if maximum combination value is bigger than array elements it will be overridden to the array length
 
 # Example
@@ -53,4 +53,4 @@ Combinations [![Build Status](https://travis-ci.org/jgallen23/combinations.svg?b
     //    [ 'red', 'green' ],             [ 'orange', 'yellow' ],
     //    [ 'orange', 'green' ],          [ 'yellow', 'green' ],
     //    [ 'red', 'orange', 'yellow' ],  [ 'red', 'orange', 'green' ],
-    //    [ 'red', 'yellow', 'green' ],   [ 'orange', 'yellow', 'green' ] ]
\ No newline at end of file
+    //    [ 'red', 'yellow', 'green' ],   [ 'orange', 'yellow', 'green' ] ]