Fix errors

example.php

@@ -5,7 +5,7 @@
 include 'metacritic.php';
 
 $metacritic_api = new MetacriticAPI();
-$metacritic_api->get_metacritic_page("The Elder Scrolls V: Skyrim");
-$json_reponse = $metacritic_api->get_metacritic_scores();
+$metacritic_api->getMetacriticPage("The Elder Scrolls V: Skyrim");
+$json_reponse = $metacritic_api->getMetacriticScores();
 
 echo "Json Output:\n<br/><br/> " . $json_reponse;

metacritic.php

 <?php
 
+namespace MetacriticAPI;
+
 require_once 'libs/Unirest.php';
 require_once 'libs/simple_html_dom.php';