add run script

run.sh

@@ -0,0 +1,16 @@
+bin=./flark
+output=image.ppm
+viewer=$(which feh)
+
+# generate makefile
+cmake . 
+
+# build
+make
+
+# generate output image
+rm $output
+$bin >> $output
+
+#display image
+$viewer $output