README update.

update_readme.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+set -e
+
+trap "rm -f README.md.new" EXIT
+
+awk '
+/Command-line Options/ { seen = 1; }
+{ if (!seen) print $0; }
+' README.md > README.md.new
+
+echo "Command-line Options" >> README.md.new
+echo "====================" >> README.md.new
+echo >> README.md.new
+
+./mutilate --help | sed "s/^/    /" >> README.md.new
+
+mv -f README.md.new README.md
+
+trap "" EXIT