Update readme

README.md

@@ -35,18 +35,18 @@ The main goal of the PHPunit Coverage Listener package is to provide a mechanism
 
 Then in the target server, you could accept the payload as follow (simplified) :
 
-  <?php
+    <?php
 
-  $success = false;
+    $success = false;
 
-  if (!empty($_FILES) && isset($_FILES['json_file'])) {
-    $target = __DIR__.'/coverage.json';
-    move_uploaded_file($_FILES['json_file']['tmp_name'], $target);
-    $success = 'Saved into http://'.$_SERVER['HTTP_HOST'].'/coverage.json';
-  }
+    if (!empty($_FILES) && isset($_FILES['json_file'])) {
+      $target = __DIR__.'/coverage.json';
+      move_uploaded_file($_FILES['json_file']['tmp_name'], $target);
+      $success = 'Saved into http://'.$_SERVER['HTTP_HOST'].'/coverage.json';
+    }
 
-  header('Content-Type: application/json');
-  die(json_encode(compact('success')));
+    header('Content-Type: application/json');
+    die(json_encode(compact('success')));
 
 Above json data could be process furthermore to expose usefull information about your code-coverage information in a way that fit with your specific needs. [Coveralls](https://coveralls.io/) service would be a perfect example in this scenario.