title: NuGet Package'n'Publish project include xml comments
body: <p>I have this structure in my solution:</p>
  
  <pre><code>Solution
      project: class library
      project: NuGet.Package'n'Publish
  </code></pre>
  
  <p>I need to include the xml comments file generated by the class library project in the NuGet package. I have seen other answers suggesting to add <code>&lt;file src="bin\*.xml" target="lib" /&gt;</code> or some variant in the nuspec file, but I can't get it to work.</p>
  
  <p>The class library does generate an xml file, but it isn't included in the package.</p>
  
  <p>I don't even know where to begin troubleshooting other than trying random variants of the <code>&lt;file...</code> tag, which hasn't worked this far.</p>
  
  <p>There is no error message - it just isn't included.</p>
  
  <p>The default section in the NuGet.Package'n'Publish project's nuspec template looks like this:</p>
  
  <pre><code>&lt;files&gt;
    &lt;file src="lib\**\*.dll" target="lib" /&gt;
    &lt;file src="lib\**\*.pdb" target="lib" /&gt;
    &lt;file src="tools\**\*.*" target="tools" /&gt;
    &lt;file src="content\**\*.*" target="content" exclude="content\Content.Readme.txt" /&gt;
  &lt;/files&gt;
  </code></pre>