update of the docu.

doc/html/musr-root.html

@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>MusrRoot - an Extensible Open File Format for μSR &mdash; musrfit 1.9.3 documentation</title>
+  <title>MusrRoot - an Extensible Open File Format for μSR &mdash; musrfit 1.9.4 documentation</title>
   
 
   
@@ -1007,7 +1007,7 @@ the entry has been added. The last token, <code class="docutils literal notransl
   <div role="contentinfo">
     <p>
         &copy; Copyright 2023, Andreas Suter.
-      Last updated on Apr 23, 2024.
+      Last updated on Jun 08, 2024.
 
     </p>
   </div>
@@ -1029,7 +1029,7 @@ the entry has been added. The last token, <code class="docutils literal notransl
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'1.9.3',
+            VERSION:'1.9.4',
             LANGUAGE:'None',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',