fix brightness keybind

skel/.i3/config

@@ -51,8 +51,8 @@ bindsym $mod+Ctrl+m exec terminal -e 'alsamixer'
 ################################################################################################
 
 # Screen brightness controls
-bindsym $mod+plus exec "brightness up; notify-send 'brightness up'"
-bindsym $mod+minus exec "brightness down; notify-send 'brightness down'"
+bindsym $mod+'.' exec "brightness up; notify-send 'brightness up'"
+bindsym $mod+',' exec "brightness down; notify-send 'brightness down'"
 
 # Start Applications
 bindsym $mod+Ctrl+b exec terminal -e 'bmenu'