SDL: examples/audio/04-multiple-streams: Note about web browser audio in README.

From bbd4eeb287c7bde32f11efae5939bf10a886fe2e Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Wed, 11 Dec 2024 14:13:52 -0500
Subject: [PATCH] examples/audio/04-multiple-streams: Note about web browser
 audio in README.

---
 examples/audio/04-multiple-streams/README.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/examples/audio/04-multiple-streams/README.txt b/examples/audio/04-multiple-streams/README.txt
index ecb82f56dc340..9ef2275bd6d3d 100644
--- a/examples/audio/04-multiple-streams/README.txt
+++ b/examples/audio/04-multiple-streams/README.txt
@@ -1,3 +1,5 @@
+If you're running this in a web browser, you need to click the window before you'll hear anything!
+
 This example code loads two .wav files, puts them an audio streams and binds
 them for playback, repeating both sounds on loop. This shows several streams
 mixing into a single playback device.