Fixed typo in config with caused undefined option

Author: svycka

Diff for: CHANGELOG.md

@@ -13,7 +13,7 @@ Updates should follow the [Keep a CHANGELOG](http://keepachangelog.com/) princip
 - Nothing
 
 ### Fixed
-- Nothing
+- Fixed typo in config with caused undefined `pipelines` option
 
 ### Removed
 - Nothing

Diff for: src/Module/ZendExpressive.php

@@ -62,7 +62,7 @@ public function _initialize() : void
         $app = $this->container->get('Zend\Expressive\Application');
         $factory = $this->container->get(\Zend\Expressive\MiddlewareFactory::class);
 
-        $pipelineFile = $projectDir . $this->config['pipelines'];
+        $pipelineFile = $projectDir . $this->config['pipeline'];
         if (file_exists($pipelineFile)) {
             (require $pipelineFile)($app, $factory, $this->container);
         }