Update README.md

Author: dovy

README.md

@@ -1,6 +1,8 @@
 redux-extensions-loader
 ================
 
+** DEPRECATED ** This is no longer needed with Redux 4+. Use Redux `Redux::set_extensions( {OPT_NAME}, {EXTENTION_PATH} );` instead.
+
 The loader code needed to instantiate any Redux extension. To load any Redux extension, you need but do two things:
 
 * Inside loader.php change `{$redux_opt_name}` to match your opt_name or set `$redux_opt_name` to your `opt_name` and make sure it's accessible by loader.php.
@@ -14,4 +16,4 @@ Depending on the extension you may also need to load a config file of some type
 Because of WordPress hooks you need to include this before you create your ReduxFramework instance. It has to do with hooks. Just load this loader and your config settings prior to creating that object.
 
 ## Note: DO NOT place extensions within ~/ReduxCore/Extensions
-If you do so any other plugin could override your extensions and they would be inaccessible by your code.
+If you do so any other plugin could override your extensions and they would be inaccessible by your code.