Fix indent

Author: CoreTaxxe

doc/classes/Timer.xml

@@ -9,7 +9,7 @@
 		Without requiring much code, a timer node can be added and configured in the editor. The [signal timeout] signal it emits can also be connected through the Node dock in the editor:
 		[codeblock]
 		func _on_timer_timeout():
-		print("Time to attack!")
+			print("Time to attack!")
 		[/codeblock]
 		[b]Note:[/b] To create a one-shot timer without instantiating a node, use [method SceneTree.create_timer].
 		[b]Note:[/b] Timers in Time mode are affected by [member Engine.time_scale]. The higher the time scale, the sooner timers will end. How often a timer processes may depend on the framerate or [member Engine.physics_ticks_per_second].