Update the README

README.md

@@ -1,11 +1,26 @@
 [![CI-Release](https://github.com/wiiu-env/ftpiiu_plugin/actions/workflows/ci.yml/badge.svg)](https://github.com/wiiu-env/ftpiiu_plugin/actions/workflows/ci.yml)
 
-## Usage
+## Installation
 (`[ENVIRONMENT]` is a placeholder for the actual environment name.)
 
 1. Copy the file `ftpiiu.wps` into `sd:/wiiu/environments/[ENVIRONMENT]/plugins`.  
 2. Requires the [WiiUPluginLoaderBackend](https://github.com/wiiu-env/WiiUPluginLoaderBackend) in `sd:/wiiu/environments/[ENVIRONMENT]/modules`.
 
+## Usage information and settings
+
+- By default, the FTPiiU server is running as long the plugin loaded (file is in the plugin directory of your environment).
+- Access to the system files is **disabled by default**, you can enable it in the config menu.
+- To connect to the server you can use empty credentials
+- The SD card can be accessed via `/fs/vol/external01/`
+
+Via the plugin config menu (press L, DPAD Down and Minus on the gamepad) you can configure the plugin. The available options are the following:
+- **Settings**:
+  - Enable FTPiiU:
+    - Starts/Stops the ftp server which is running in the background. Changes take effect when so close the config menu. (Default is true).
+  - Allow access to system files:
+    - Allows you to access all system files. If this option is disabled, you can only access `/fs/vol/content`, `/fs/vol/save` and `/fs/vol/external01` (SD card). Changes take effect when so close the config menu, but the server may restart. (Default is false).
+- Additionally, the config menu will display the IP of your console and the port the server is running at.
+
 ## Buildflags
 
 ### Logging