Update doc/usage.rst

doc/usage.rst

@@ -147,7 +147,7 @@ Note: You need to pass the config to the ``fix`` command, in order to make it wo
 
 .. code-block:: console
 
-    $ php php-cs-fixer.phar list-files --config=.php_cs.dist | xargs -n 10 -P 8 php-cs-fixer fix --config=.php_cs.dist
+    $ php php-cs-fixer.phar list-files --config=.php-cs-fixer.dist.php | xargs -n 10 -P 8 php php-cs-fixer.phar fix --config=.php-cs-fixer.dist.php --path-mode intersection -v
 
 * `-n` defines how many files a single subprocess process
 * `-P` defines how many subprocesses the shell is allowed to spawn for parallel processing (usually similar to the number of CPUs your system has)