Merge pull request #7 from dmirogin/patch-1

Add @mixin to phpdoc

Author: dmitry-ivanov

src/Mutex.php

@@ -12,6 +12,9 @@
 use NinjaMutex\Lock\PredisRedisLock;
 use NinjaMutex\Mutex as Ninja;
 
+/**
+ * @mixin Ninja
+ */
 class Mutex
 {
     private $command;