Added button to go in and out of credits

godot_ship/script/credits/Credits.gd

@@ -0,0 +1,22 @@
+extends Control
+
+
+# Declare member variables here. Examples:
+# var a = 2
+# var b = "text"
+
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	pass # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+#func _process(delta):
+#	pass
+
+
+func _on_Back_pressed():
+	AudioBus.emit_signal("button_clicked")
+	queue_free()
+	pass # Replace with function body.