title: Create chinese xml ruby nokogiri
body: <p>I am facing issue with nokogiri xml builder with Chinese characters.
  This is working fine for
  <code>&lt;adjustment_type&gt;temporary&lt;/adjustment_type</code>></p>
  
  <p>and fails for</p>
  
  <pre><code>&lt;調整類型&gt;temporary&lt;/調整類型&gt;
  </code></pre>
  
  <p>I am doing it with</p>
  
  <pre><code>a = Nokogiri::XML::Builder.new do |xml|
    xml.send "調整類型", "abc"
  end
  </code></pre>