update readme.md

Author: andremalveira

.gitignore

@@ -3,4 +3,5 @@ composer.phar
 .DS_Store
 /vendor
 .vercel
-.env
+.env
+/public/banner.psd

README.md

@@ -1,10 +1,11 @@
-# Example API Structure in PHP - MVC for deploying in Vercel
+
+## <p align="center">Example API structure in PHP - MVC with Database Firebase for deployment in Vercel </p>
 <p align="center">
   <a href="#astroanut-hi"><img src="public/banner.png" alt="Hi!!"/></a>
 </p>
 
 ## Example JSON Structure in Database Firebase 
-#
+
     name-your-database
     ├── public              
     ├── private                 

core/Database.php

@@ -19,7 +19,7 @@ public static function public($tableName = ''){
   }
   public static function private($tableName = false){
     $database = self::connection();
-    $reference = $database->getReference($tableName);
+    $reference = $database->getReference('private/'.$tableName);
     return $reference->getValue();
   }
 }