Add docs on depth argument

blakeembrey · blakeembrey · commit 6d6362f326b3 · 2015-01-12T15:53:02.000+07:00
diff --git a/README.md b/README.md
@@ -4,7 +4,7 @@
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-Flatten an array of nested arrays into a single flat array.
+Flatten an array of nested arrays into a single flat array. Accepts an optional depth argument.
 
 ## Installation
 
