Update README.md

Added security measure to prevent access to file data except for when uploading.

Author: tonyspiro

README.md

@@ -45,6 +45,38 @@ On the frontend:
    <script>$('#fileupload').fileupload({ dataType: 'json' })</script>
 ```
 
+To prevent access to /upload except for post (for security)
+```javascript
+upload.configure({
+    uploadDir: __dirname + '/public/uploads/',
+    uploadUrl: '/uploads'
+});
+
+/// Redirect all to home except post
+app.get('/upload', function( req, res ){
+	res.redirect('/');
+});
+
+app.put('/upload', function( req, res ){
+	res.redirect('/');
+});
+
+app.delete('/upload', function( req, res ){
+	res.redirect('/');
+});
+
+app.use('/upload', function(req, res, next){
+    upload.fileHandler({
+        uploadDir: function () {
+            return __dirname + '/public/uploads/'
+        },
+        uploadUrl: function () {
+            return '/uploads'
+        }
+    })(req, res, next);
+});
+```
+
 Overriding global configuration
 
 ```javascript