added comments on the screenshot util

i3/config

@@ -188,8 +188,13 @@ bindsym $mod+Shift+p exec gpodder
 bindsym $mod+Shift+f exec --no-startup-id pcmanfm
 bindsym $mod+Ctrl+f exec --no-startup-id alacritty -e ranger 
 
+#WHOLE SCREEN
 bindsym Print exec scrot $HOME/Pictures/Screenshots/`date +%Y-%m-%d_%H:%M:%S`.png
+
+#APPLICATION
 bindsym $mod+Print exec scrot -u $HOME/Pictures/Screenshots/`date +%Y-%m-%d_%H:%M:%S`.png
+
+##SELECT
 bindsym $mod+Ctrl+Print exec scrot -s $HOME/Pictures/Screenshots/`date +%Y-%m-%d_%H:%M:%S`.png