update a few notes on readme

README.md

···
 
 In either case, copy (or create new) those files in the appropriate configuration directory, depending on
 your operating system, and then continuing to the following sections. The appropriate directories are:
-*   Linux: `$HOME/.config/syncat/`
+*   Linux: `$HOME/.config/syncat/` (more accurately, `$XDG_CONFIG_HOME/syncat`)
 *   Mac: `$HOME/Library/Preferences/com.cameldridge.syncat/`
 *   Windows: Not officially supported
 
···
 
 # Colours the file using a specific language
 syncat -l js src/package.json
+
+# Exports the default configuration into your system's configuration directory
+syncat init
 
 # Installs (or updates) all languages listed in the `languages.toml` file
 syncat install