Implemented credits scene

GUI/Main Menu.gd

@@ -2,12 +2,20 @@ extends CanvasLayer
 
 signal complete(option)
 
+export var credits_scene_path: String = 'res://GUI/Credits.tscn'
+
 
 func _on_new_game_button_pressed() -> void:
     emit_signal('complete', 'new game')
     return
 
 
+func _on_credits_button_pressed() -> void:
+    var credits_scene: Node = load(credits_scene_path).instance()
+    add_child(credits_scene)
+    return
+
+
 func _on_quit_button_pressed() -> void:
     get_tree().quit()
     return