diff --git a/.bin/external-only b/.bin/external-only
index 77c31ff..09480d3 100644
--- a/.bin/external-only
+++ b/.bin/external-only
@@ -1,2 +1,6 @@
+#!/usr/bin/env bash
+# Toggle monitor settings
+
+# only show on external display
 xrandr --output eDP1 --off
 xrandr --output HDMI1 --mode 3840x2160 --primary