title: symbols in restructuredText
body: <p>I want to use some symbols in restructuredText; how can I do this? (e.g. <code>&amp;rarr;</code> in Markdown yields the "&rarr;" symbol as defined in the <a href="http://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references" rel="noreferrer">list of standard HTML character entities</a> -- see also <a href="http://www.w3.org/TR/REC-html40/sgml/entities.html" rel="noreferrer">w3c reference</a>)</p>
  
  <p>Note: I don't want to require math formula support as a dependency.</p>