background.sh for dwm added

dwm/background.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+directory=~/Pictures/hyprpaper/images
+
+while true; do
+    if [ -d "$directory" ]; then
+        random_background=$(ls $directory/* | shuf -n 1)
+
+        feh --bg-fill $random_background
+    fi
+    sleep 60
+done
+