Update README.md

README.md

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 A simple Wii U Menu replacement, still in early development and not ready for a day to day usage
 
 ## Usage (Replace Wii U Menu via Mocha Payload):
-- Place the `men.rpx` on the sd card in the directory `sd:/wiiu`.
+([ENVIRONMENT] is a placeholder for the actual environment name.)
+- Place the `men.rpx` on the sd card in the directory `sd:/wiiu/environments/[ENVIRONMENT]/`.
 - Load the [MochaPayload](https://github.com/wiiu-env/MochaPayload) via the [EnvironmentLoader](https://github.com/wiiu-env/EnvironmentLoader) (e.g. [Tiramisu](https://github.com/wiiu-env/Tiramisu))
 - Load the Wii U Menu and launchiine should show up instead.