Merge pull request #2385 from sahat/patch-1

Fix Express deprecated usage warning

Author: taion

docs/guides/advanced/ServerRendering.md

@@ -23,13 +23,13 @@ serve((req, res) => {
   // the original request, including the query string.
   match({ routes, location: req.url }, (error, redirectLocation, renderProps) => {
     if (error) {
-      res.send(500, error.message)
+      res.status(500).send(error.message)
     } else if (redirectLocation) {
       res.redirect(302, redirectLocation.pathname + redirectLocation.search)
     } else if (renderProps) {
-      res.send(200, renderToString(<RoutingContext {...renderProps} />))
+      res.status(200).send(renderToString(<RoutingContext {...renderProps} />))
     } else {
-      res.send(404, 'Not found')
+      res.status(404).send('Not found')
     }
   })
 })