title: Inclusion of external documentation into a Sphinx project
body: <p>We maintain a fairly large documentation using Sphinx in SVN.</p>
  
  <p>As part of the generated output we would like to include the release notes of related Python modules as primary content (not as hyperlink!). The release notes of the external modules are also maintained in SVN. Is there some Sphinx-ish way to pull in the parts of the documentation from other (SVN) sources? Ok, using SVN externals is a way to solve the problem but perhaps not the smartest way...any better options?</p>