README.md in crypt_keeper-0.0.3 vs README.md in crypt_keeper-0.0.4

@@ -6,9 +6,12 @@
 
 1. Takes a hash argument for `initialize`
 2. Provides an `encrypt` method that returns the encrypted string
 3. Provides a `decrypt` method that returns the plaintext
 
+Note: Any options defined using `crypt_keeper` will be passed to `new` as a 
+hash.
+
 Use can see an AES example here [here](https://github.com/jmazzi/crypt_keeper_providers/blob/master/lib/crypt_keeper_providers/aes.rb)
 
 ## Why?
 
 The options available were either too complicated under the hood or had weird