Update README

Author: yoanm

README.md

@@ -107,6 +107,7 @@ use Yoanm\JsonRpcServer\App\Serialization\JsonRpcCallDenormalizer;
 use Yoanm\JsonRpcServer\App\Serialization\JsonRpcCallResponseNormalizer;
 use Yoanm\JsonRpcServer\App\Serialization\JsonRpcCallSerializer;
 use Yoanm\JsonRpcServer\App\Serialization\JsonRpcRequestDenormalizer;
+use Yoanm\JsonRpcServer\App\Serialization\JsonRpcResponseErrorNormalizer;
 use Yoanm\JsonRpcServer\App\Serialization\JsonRpcResponseNormalizer;
 use Yoanm\JsonRpcServer\Infra\Endpoint\JsonRpcEndpoint;
 
@@ -118,7 +119,8 @@ $jsonRpcSerializer = new JsonRpcCallSerializer(
         new JsonRpcRequestDenormalizer()
     ),
     new JsonRpcCallResponseNormalizer(
-        new JsonRpcResponseNormalizer()
+        new JsonRpcResponseNormalizer() 
+        // or `new JsonRpcResponseNormalizer(new JsonRpcResponseErrorNormalizer())` for debug purpose
     )
 );
 $responseCreator = new ResponseCreator();
@@ -327,21 +329,6 @@ $validator = new class implements JsonRpcMethodParamsValidatorInterface
 $requestHandler->setMethodParamsValidator($validator);
 ```
 
-## Makefile
-
-```bash
-# Install and configure project
-make build
-# Launch tests (PHPUnit & behat)
-make test
-# Check project code style
-make codestyle
-# Generate PHPUnit coverage
-make coverage
-# Generate Behat coverage
-make behat-coverage
-```
-
 ## Contributing
 
 See [contributing note](./CONTRIBUTING.md)