title: WARNING: document isn't included in any toctree for included file
body: <p>I'm getting the warning:</p>
  <pre><code>WARNING: document isn't included in any toctree
  </code></pre>
  <p>for files that exist in the document because they've been explicitly included.  So I have the index file:</p>
  <pre><code>.. toctree::
      :maxdepth: 2
  
     pages/0010-foo
     pages/0020-bar
  </code></pre>
  <p>In the file 0020-bar.rst, I'm specifically including a number of other files, as in:</p>
  <pre><code>.. contents:: :local:
  
  .. include:: /pages/reference-architecture/technical-considerations/0070-baz.rst
  </code></pre>
  <p>But when I build the project, I still get a warning that 0070-baz.rst isn't in any toctree, as in:</p>
  <pre><code>/home/nick/Documents/myProject/docs/pages/reference-architecture/technical-considerations/0070-baz.rst:: WARNING: document isn't included in any toctree
  </code></pre>
  <p>The weird thing is that I can see the content in the output. Is this normal?  Does this warning always appear for files that are explicitly included rather than included via toctree?</p>