Update ThingsToKnow.rst

ThingsToKnow.rst

@@ -3,7 +3,7 @@ Things to know (best practices and "issues") READ IT !!!
 
 * The ``http`` and ``http-socket`` options are entirely different beasts.
   The first one spawns an additional process forwarding requests to a series of workers (think about it as a form of shield, at the same level of apache or nginx), while the second one set workers to natively speak the http protocol.
-  TL/DR: if you plan to expse uWSGI directly to the public, use --http, if you want to proxy it behind a webserver speaking http with backends, use --http-socket.
+  TL/DR: if you plan to expose uWSGI directly to the public, use --http, if you want to proxy it behind a webserver speaking http with backends, use --http-socket.
   .. seealso:: :doc:`HTTP`