title: XPath find text in any text node
body: <p>I am trying to find a certain text in any text node in a document, so far my statement looks like this:</p>
  
  <pre><code>doc.xpath("//text() = 'Alliance Consulting'") do |node|
    ...
  end
  </code></pre>
  
  <p>This obviously does not work, can anyone suggest a better alternative?</p>