Update description to README.md

Author: devanych

README.md

@@ -9,6 +9,8 @@
 
 This package contains a collection of classes that implements [Psr\Http\Message\ResponseInterface](https://github.com/php-fig/http-message/blob/master/src/ResponseInterface.php) from [PSR-7 HTTP Message](https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-7-http-message.md) in accordance with the [RFC 7230](https://tools.ietf.org/html/rfc7230) and [RFC 7231](https://tools.ietf.org/html/rfc7231) specifications. 
 
+Depends on the [httpsoft/http-message](https://github.com/httpsoft/http-message) package.
+
 ## Documentation
 
 * [In English language](https://httpsoft.org/docs/response).
@@ -22,7 +24,50 @@ This package requires PHP version 7.4 or later.
 composer require httpsoft/http-response
 ```
 
-## Usage
+## Usage standard response
+
+```php
+use HttpSoft\Message\Response;
+
+$response = new Response();
+// default values
+$response->getStatusCode(); // 200
+$response->getReasonPhrase(); // 'OK'
+$response->getBody()->getContents(); // ''
+$response->getBody()->getMetadata('uri') // 'php://temp'
+$response->getHeaders(); // []
+$response->getProtocolVersion(); // '1.1'
+
+// Create with the passed parameters
+$response = new Response(404, ['Content-Language' => 'en'], 'php://memory', '2');
+$response->getStatusCode(); // 404
+$response->getReasonPhrase(); // 'Not Found'
+$response->getBody()->getContents(); // ''
+$response->getBody()->getMetadata('uri') // 'php://memory'
+$response->getHeaders(); // ['Content-Language' => ['en']]
+$response->getProtocolVersion(); // '2'
+
+// Write to the response body:
+$response->getBody()->write('Content');
+$response->getBody()->getContents(); // 'Content'
+
+// With `Content-Type` header:
+$newResponse = $response->withHeader('Content-Type', 'text/plain');
+$newResponse->getHeaderLine('content-type'); // 'text/plain'
+$newResponse->getHeaders(); // ['Content-Language' => ['ru'], 'Content-Type' => ['text/plain']]
+
+// With status code:
+$newResponse = $response->withStatus(500);
+$newResponse->getStatusCode(); // 500
+$newResponse->getReasonPhrase(); // 'Internal Server Error'
+
+// With status code and reason phrase:
+$newResponse = $response->withStatus(599, 'Custom Phrase');
+$newResponse->getStatusCode(); // 599
+$newResponse->getReasonPhrase(); // 'Custom Phrase'
+```
+
+## Usage custom responses
 
 ```php
 // Create `Psr\Http\Message\ResponseInterface` instance from HTML: