diff --git a/04-main.sh b/04-main.sh
index dafd53b..6930029 100644
--- a/04-main.sh
+++ b/04-main.sh
@@ -3,6 +3,7 @@
 # - Check if installation is successful
 # - Check if already installed
 # - Uninstall
+# - Allow to use already set variables
 
 # main
 set_lang