Rexml Quoting control

I’m generating a xml with Rexml. Pretty straightforward. I have a
question about quoting.

I would like this result (for example)

But when I do the obvious:

x = Element.new(“Outline”)
x.add_attribute(“text”, “Ellen’s house”)
x.add_attribute(“Url”, “http://www.google.com”)

x
=>

Note the quoting is using single quotes and & escapes. What I showed at
the top is also valid xml. How do I ask rexml to generate it?

If you know and can help it would be greatly appreciated!