removing duplicate parameter, and adding documentation to options par…

…ameter

README.md

@@ -23,6 +23,13 @@ const { ExpressWrapper } = require ('ninja-util');
 
 ```
 
+The wrappers methods for each http method have the `options` parameter, used to send optional settings.
+
+To allow file upload in a specific route, the user should set:
+```js
+options.acceptFiles = true
+```
+
 ## Heap
 
 > TODO

expresswrapper.js

@@ -413,7 +413,7 @@ ExpressWrapper.prototype.put = function(route, streamResponse, callback, options
 		callback = streamResponse;
 		streamResponse = false;
 	}
-	_request.call(this, "put", route, streamResponse, callback, options, options);
+	_request.call(this, "put", route, streamResponse, callback, options);
 };
 
 ExpressWrapper.prototype.delete = function(route, streamResponse, callback, options)