Update some music ref docs (#1693)

* Update some music ref docs

* bad link

* Actually add the note, hello

docs/reference/music/ring-tone.md

@@ -3,14 +3,16 @@
 Play a musical tone through pin `P0` with the pitch as high or low as you say.
 The tone will keep playing until you tell it not to.
 
-## Simulator
-
-This function only works on the @boardname@ and in some browsers.
-
 ```sig
 music.ringTone(440)
 ```
 
+## ~ hint
+
+**Simulator**: This function only works on the @boardname@ and in some browsers.
+
+## ~
+
 ## Parameters
 
 * ``frequency`` is a [number](/types/number) that says