Require-dev section fix in composer

Author: AndrewCarterUK

composer.json

@@ -15,12 +15,10 @@
         "phpfastcgi/fastcgi-daemon": "^0.7"
     },
     "require-dev": {
+        "satooshi/php-coveralls": "dev-master",
         "zendframework/zend-servicemanager": "^2.5",
         "zendframework/zend-expressive-fastroute": "^1.0"
     },
-    "require-dev": {
-        "satooshi/php-coveralls": "dev-master"
-    },
     "autoload": {
         "psr-4": {
             "PHPFastCGI\\Adapter\\Expressive\\": "src/"