Move docs to submodule for multi-module projects

docs/src/main/ruby/generate_readme.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env ruby
+
+base_dir = File.join(File.dirname(__FILE__),'../../..')
+src_dir = File.join(base_dir, "/src/main/asciidoc")
+require File.join(File.dirname(__FILE__), 'readme.rb')
+require 'optparse'
+
+options = {}
+input = "#{src_dir}/README.adoc"
+
+OptionParser.new do |o|
+  o.on('-o OUTPUT_FILE', 'Output file (default is stdout)') { |file| options[:to_file] = file unless file=='-' }
+  o.on('-h', '--help') { puts o; exit }
+  o.parse!
+end
+
+input = ARGV[0] if ARGV.length>0
+
+SpringCloud::Build.render_file(input, options)