title: Adding text in a new line in WPF RichTextBox at runtime
body: <p>I want to add some text in a WPF RichTextBox at runtime in a new line.
  I can do this using:</p>
  
  <pre><code>FlowDocument mcFlowDoc = new FlowDocument();
  mcFlowDoc = richTextBox.Document;
  Paragraph pr = new Paragraph();
  pr.Inlines.Add(status);
  mcFlowDoc.Blocks.Add(pr);
  StatusText.Document = mcFlowDoc;
  </code></pre>
  
  <p>But there is too much of a gap between two lines.  How can I fix this?</p>