Add deprecation warning to README

README.md

@@ -1,4 +1,10 @@
 # codeigniter-bcrypt
+
+## DEPRECATION WARNING
+
+This library is not maintained, and it is suggested that you don't use it. It was simply a CodeIgniter wrapper around the PHPPass library. Please look into using [PHP's native password hasing functions instead](https://secure.php.net/manual/en/function.password-hash.php).
+
+
 ## Bcrypt (PHPPass) for CodeIgniter
 
 Adaption of PHPPass (0.3) for use as a CodeIgniter Bcrypt library.
@@ -38,4 +44,4 @@ To check a hash password, simply pass the string and stored password to ``check_
     	// Password does not match stored password.
     }
 
-The function will return ``TRUE`` or ``FALSE`` dependant on success.
+The function will return ``TRUE`` or ``FALSE`` dependant on success.