run script

[csgray] / RUN

diff --git a/RUN b/RUN
new file mode 100755 (executable)
index 0000000..728ad5c
--- /dev/null
+++ b/RUN
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+rm -f output.ppm
+./csgray && display output.ppm