osmux-reference-docinfo: Add latest changes to revhistory

Change-Id: I01e513a71a3f830d393c57c43678d7e4c8d2d151
diff --git a/doc/manuals/osmux-reference-docinfo.xml b/doc/manuals/osmux-reference-docinfo.xml
index 06b2d7e..7e31ec7 100644
--- a/doc/manuals/osmux-reference-docinfo.xml
+++ b/doc/manuals/osmux-reference-docinfo.xml
@@ -28,6 +28,14 @@
             Update frame bits according to implementation.
     </revremark>
   </revision>
+  <revision>
+    <revnumber>0.4</revnumber>
+    <date>19 July 2017</date>
+    <authorinitials>Pau Espin Pedrol</authorinitials>
+    <revremark>
+            Add sequence charts, generate packet header structure with packetdiag, generate traffic saving plot with pychart.
+    </revremark>
+  </revision>
 </revhistory>
 
 <authorgroup>