Changed incorrect pos coordinate to a world coordinate in island 6 runway

Author: george308turner

tutorials/python-islands/island-6/runway/runway_1.md

@@ -20,7 +20,7 @@ namespace agent {
 
         let orientation = agent.getOrientation();
 
-        agent.teleport(pos(948, y, z), orientation);
+        agent.teleport(world(948, y, z), orientation);
     }
 }