Add migration to WebAssembly information to PNaCl / NaCl docs.

native_client_sdk/doc_generated/devguide/coding/audio.html

Index: native_client_sdk/doc_generated/devguide/coding/audio.html
diff --git a/native_client_sdk/doc_generated/devguide/coding/audio.html b/native_client_sdk/doc_generated/devguide/coding/audio.html
index 6177b5c1c01d99505ef0418d24e5d5c34263ae82..cbdb7d4526037ed7947e835bbd1101014c1fdade 100644
--- a/native_client_sdk/doc_generated/devguide/coding/audio.html
+++ b/native_client_sdk/doc_generated/devguide/coding/audio.html
@@ -1,7 +1,15 @@
 {{+bindTo:partials.standard_nacl_article}}
 
-<section id="audio">
-<span id="devguide-coding-audio"></span><h1 id="audio"><span id="devguide-coding-audio"></span>Audio</h1>
+<b><font color="#cc0000">
+NOTE:
+Deprecation of the technologies described here has been announced
+for platforms other than ChromeOS.<br/>
+Please visit our
+<a href="/native-client/migration">migration guide</a>
+for details.
+</font></b>
+<hr/><section id="audio">
+<h1 id="audio">Audio</h1>
 <div class="contents local" id="contents" style="display: none">
 <ul class="small-gap">
 <li><a class="reference internal" href="#reference-information" id="id1">Reference information</a></li>