download bonus content

README.md

@@ -19,6 +19,9 @@
 - Passing ```iw4-sp```, ```iw4x```, ```iw5-mod```, ```iw6-mod``` or ```s1-mod``` as the first argument will skip automatic game detection
 - Passing ```update``` will stop the launcher from launching the game
 - ```skip-launcher-update``` skips launcher self-update
+- ```bonus``` download bonus content
+
+Some arguments can be set in alterware-launcher.json, args generally override the values of the config.
 
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