update express.md

express.md

@@ -220,7 +220,7 @@
 
       // Accept: text/html
       req.accepts('html');
-        // => "html"
+      // => "html"
 
       // Accept: text/*, application/json
       req.accepts('html');
@@ -256,8 +256,8 @@
 
   Return the value of param `name` when present or `defaultValue`.
 
-   - Checks body params, ex: id=12, {"id":12}
    - Checks route placeholders, ex: _/user/:id_
+   - Checks body params, ex: id=12, {"id":12}
    - Checks query string params, ex: ?id=12
 
   To utilize request bodies, `req.body`
@@ -285,17 +285,6 @@
       
        req.is('html');
        // => false
-
-   Now within our route callbacks, we can use to to assert content types
-   such as "image/jpeg", "image/png", etc.
-
-       app.post('/image/upload', function(req, res, next){
-         if (req.is('image/*')) {
-           // do something
-         } else {
-           next();
-         }
-       });
 
 
 # res
@@ -372,6 +361,8 @@
   and optional callback `fn(err)`. The callback is invoked
   when the data transfer is complete, or when an error has
   ocurred. Be sure to check `res.headerSent` if you plan to respond.
+
+  This method uses `res.sendfile()`.
 
 # res.format()
 
@@ -404,7 +395,7 @@
      });
 
   In addition to canonicalized MIME types you may
-  ## also use extnames mapped to these types
+  also use extnames mapped to these types:
 
      res.format({
        text: function(){
@@ -417,22 +408,30 @@
      
        json: function(){
          res.send({ message: 'hey' });
-         }
+       }
      });
+
+  By default Express passes an `Error`
+  with a `.status` of 406 to `next(err)`
+  if a match is not made, however you may
+  provide an optional callback `fn` to
+  be invoked instead.
 
 # res.attachment()
 
   Set _Content-Disposition_ header to _attachment_ with optional `filename`.
 
-# res.set()
+# res.set
 
   Set header `field` to `val`, or pass
-  an object of of header fields.
+  an object of header fields.
 
   ## Examples
 
      res.set('Accept', 'application/json');
      res.set({ Accept: 'text/plain', 'X-API-Key': 'tobi' });
+
+  Aliased as `res.header()`.
 
 # res.get()
 
@@ -442,18 +441,14 @@
 
   Clear cookie `name`.
 
-# res.signedCookie()
-
-  Set a signed cookie with the given `name` and `val`.
-  See `res.cookie()` for details.
-
 # res.cookie()
 
   Set cookie `name` to `val`, with the given `options`.
 
   ## Options
 
      - `maxAge`   max-age in milliseconds, converted to `expires`
+     - `signed`   sign the cookie
      - `path`     defaults to "/"
 
   ## Examples