Update README.md

Author: davidecesarano

README.md

@@ -12,21 +12,27 @@ $ composer require davidecesarano/embryo-http
 ```
 
 ## Usage
+
 ### Request
 ```php
 $request = (new RequestFactory)->createRequest('GET', 'http://example.com');
 ```
-### Server Request
+
+### ServerRequest
+
+#### Create Server Request
 ```php
-// create server request
 $request = (new RequestFactory)->createServerRequest('GET', 'http://example.com');
+```
 
-// create server request from server
+#### Create Server Request from Server
+```php
 $request = (new RequestFactory)->createServerRequestFromServer();
 ```
+
 ### Response
 ```php
-$request = (new ResponseFactory)->createResponse(200);
+$response = (new ResponseFactory)->createResponse(200);
 ```
 
 ### Stream
@@ -51,3 +57,7 @@ $stream = (new StreamFactory)->createStreamFromResource($resource);
 $stream->write('Hello World!);
 echo $stream; // Hello World!
 ```
+
+### Uri
+
+### UploadedFile