Fix the Readme

Author: ledsun

README.md

@@ -22,6 +22,8 @@ It is intended to work with ruby.wasm.
 Load the Ruby script that defines the constants from the `app_root` directory.
 For example, when the App class is called, `./app_root/app.rb` is load.
 
+To enable auto loadding, execute the following function:
+
 ```ruby
 OrbitalRing::Loader.setup
 ```