add porting guide ref to 1.2.0 item

diff --git a/doc/html/changelog.html b/doc/html/changelog.html
index ef105fc..ba4a5eb 100644 (file)
--- a/doc/html/changelog.html
+++ b/doc/html/changelog.html
@@ -67,7 +67,7 @@
                        <li>
                                FLAC format:
                                <ul>
-                                       <li>(none)</li>
+                                       <li>One of the reserved bits in the FLAC frame header has been assigned for future use; make sure to refer to the <a href="http://flac.sourceforge.net/api/group__porting__1__1__4__to__1__2__0.html">porting guide</a> if you parse FLAC streams manually.</li>
                                </ul>
                        </li>
                        <li>