Add usage instruction to readme (#32)

* Add usage instruction to readme

* Also mention loading homebrew

README.md

@@ -1,6 +1,9 @@
 [![CI-Release](https://github.com/wiiu-env/wiiload_plugin/actions/workflows/ci.yml/badge.svg)](https://github.com/wiiu-env/wiiload_plugin/actions/workflows/ci.yml)
 
 ## Usage
+Use the wiiload executable (located in `[DEVKITPRO]/tools/bin`) to send your plugin or homebrew (.rpx or .wuhb) to your WiiU.
+
+## Installation
 (`[ENVIRONMENT]` is a placeholder for the actual environment name.)
 
 1. Copy the file `wiiload.wps` into `sd:/wiiu/environments/[ENVIRONMENT]/plugins`.  
@@ -36,4 +39,4 @@ docker run -it --rm -v ${PWD}:/project wiiloadplugin-builder make clean
 
 ## Format the code via docker
 
-`docker run --rm -v ${PWD}:/src ghcr.io/wiiu-env/clang-format:13.0.0-2 -r ./src -i`
+`docker run --rm -v ${PWD}:/src ghcr.io/wiiu-env/clang-format:13.0.0-2 -r ./src -i`