README: Add.

diff --git a/README b/README
new file mode 100644 (file)
index 0000000..6e1b10d
--- /dev/null
+++ b/README
@@ -0,0 +1,16 @@
+README
+======
+
+Useful X11 related commands.
+
+
+xrandr
+------
+
+Auto detect monitor modes and arrange monitors:
+
+    xrandr --output LVDS1 --auto --output VGA1 --auto --right-of LVDS1
+
+Disable a monitor, important after disconnect:
+
+    xrandr --output VGA1 --off