[tepl] amtk: document the API break

[Sébastien Wilmet <swilmet src gnome org>]

commit f87590de9589458fa5f227f8ac6901ca71c728a0
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Fri Jul 14 21:34:23 2017 +0200

    amtk: document the API break

 docs/reference/api-breaks.xml |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/api-breaks.xml b/docs/reference/api-breaks.xml
index 92708f4..7710c22 100644
--- a/docs/reference/api-breaks.xml
+++ b/docs/reference/api-breaks.xml
@@ -53,6 +53,14 @@
           instead.
         </para>
       </listitem>
+      <listitem>
+        <para>
+          The classes and functions related to actions and menus have been moved
+          to a new shared library called Amtk (Actions, Menus and Toolbars Kit),
+          since it was not really related to text editors, it is more general.
+          But Amtk is still developed inside the Tepl repository.
+        </para>
+      </listitem>
     </itemizedlist>
   </chapter>
 </part>