Delete local copy of autogenerated documentation

Author: Naktibalda

Robofile.php

@@ -19,9 +19,6 @@
         "predis/predis": "^1.0",
         "codeception/codeception": "^4.0"
     },
-    "require-dev": {
-        "codeception/util-robohelpers": "dev-master"
-    },
     "autoload":{
         "classmap": ["src/"]
     },

composer.json

@@ -10,4 +10,4 @@ composer require --dev "codeception/module-redis"
 
 ## Documentation
 
-<a href="documentation.md">Look at documentation.md file</a>
+[Module documentation](https://codeception.com/docs/modules/Redis)