diff --git a/docs/dev/dev-guide/building_hono/index.html b/docs/dev/dev-guide/building_hono/index.html
index 681556e..b56ba20 100644
--- a/docs/dev/dev-guide/building_hono/index.html
+++ b/docs/dev/dev-guide/building_hono/index.html
@@ -21,19 +21,19 @@
     <title>Building from Source :: Eclipse Hono&trade; Vers.: dev</title>
 
     
-    <link href="/hono/docs/css/nucleus.css?1609380634" rel="stylesheet">
-    <link href="/hono/docs/css/fontawesome-all.min.css?1609380634" rel="stylesheet">
-    <link href="/hono/docs/css/hybrid.css?1609380634" rel="stylesheet">
-    <link href="/hono/docs/css/featherlight.min.css?1609380634" rel="stylesheet">
-    <link href="/hono/docs/css/perfect-scrollbar.min.css?1609380634" rel="stylesheet">
-    <link href="/hono/docs/css/auto-complete.css?1609380634" rel="stylesheet">
-    <link href="/hono/docs/css/theme.css?1609380634" rel="stylesheet">
-    <link href="/hono/docs/css/hugo-theme.css?1609380634" rel="stylesheet">
+    <link href="/hono/docs/css/nucleus.css?1609467041" rel="stylesheet">
+    <link href="/hono/docs/css/fontawesome-all.min.css?1609467041" rel="stylesheet">
+    <link href="/hono/docs/css/hybrid.css?1609467041" rel="stylesheet">
+    <link href="/hono/docs/css/featherlight.min.css?1609467041" rel="stylesheet">
+    <link href="/hono/docs/css/perfect-scrollbar.min.css?1609467041" rel="stylesheet">
+    <link href="/hono/docs/css/auto-complete.css?1609467041" rel="stylesheet">
+    <link href="/hono/docs/css/theme.css?1609467041" rel="stylesheet">
+    <link href="/hono/docs/css/hugo-theme.css?1609467041" rel="stylesheet">
     
-      <link href="/hono/docs/css/theme-hono.css?1609380634" rel="stylesheet">
+      <link href="/hono/docs/css/theme-hono.css?1609467041" rel="stylesheet">
     
 
-    <script src="/hono/docs/js/jquery-2.x.min.js?1609380634"></script>
+    <script src="/hono/docs/js/jquery-2.x.min.js?1609467041"></script>
 
     <style type="text/css">
       :root #header + #content > #left > #rlblock_left{
@@ -83,14 +83,14 @@
     <span data-search-clear=""><i class="fas fa-times"></i></span>
 </div>
 
-<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1609380634"></script>
-<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1609380634"></script>
+<script type="text/javascript" src="/hono/docs/js/lunr.min.js?1609467041"></script>
+<script type="text/javascript" src="/hono/docs/js/auto-complete.js?1609467041"></script>
 <script type="text/javascript">
     
         var baseurl = "https:\/\/www.eclipse.org\/hono\/docs\/\/dev";
     
 </script>
-<script type="text/javascript" src="/hono/docs/js/search.js?1609380634"></script>
+<script type="text/javascript" src="/hono/docs/js/search.js?1609467041"></script>
 
     
   </div>
@@ -1607,7 +1607,7 @@
     <section id="footer">
       
 
-<p>&copy; 2020 <a href="https://www.eclipse.org/hono/">The Eclipse Hono Project</a></p>
+<p>&copy; 2021 <a href="https://www.eclipse.org/hono/">The Eclipse Hono Project</a></p>
 
 <p>
     Documentation built with
@@ -2885,20 +2885,20 @@
     <div style="left: -1000px; overflow: scroll; position: absolute; top: -1000px; border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;">
       <div style="border: none; box-sizing: content-box; height: 200px; margin: 0px; padding: 0px; width: 200px;"></div>
     </div>
-    <script src="/hono/docs/js/clipboard.min.js?1609380635"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.min.js?1609380635"></script>
-    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1609380635"></script>
-    <script src="/hono/docs/js/jquery.sticky.js?1609380635"></script>
-    <script src="/hono/docs/js/featherlight.min.js?1609380635"></script>
-    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1609380635"></script>
-    <script src="/hono/docs/js/highlight.pack.js?1609380635"></script>
+    <script src="/hono/docs/js/clipboard.min.js?1609467042"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.min.js?1609467042"></script>
+    <script src="/hono/docs/js/perfect-scrollbar.jquery.min.js?1609467042"></script>
+    <script src="/hono/docs/js/jquery.sticky.js?1609467042"></script>
+    <script src="/hono/docs/js/featherlight.min.js?1609467042"></script>
+    <script src="/hono/docs/js/html5shiv-printshiv.min.js?1609467042"></script>
+    <script src="/hono/docs/js/highlight.pack.js?1609467042"></script>
     <script>hljs.initHighlightingOnLoad();</script>
-    <script src="/hono/docs/js/modernizr.custom.71422.js?1609380635"></script>
-    <script src="/hono/docs/js/learn.js?1609380635"></script>
-    <script src="/hono/docs/js/hugo-learn.js?1609380635"></script>
+    <script src="/hono/docs/js/modernizr.custom.71422.js?1609467042"></script>
+    <script src="/hono/docs/js/learn.js?1609467042"></script>
+    <script src="/hono/docs/js/hugo-learn.js?1609467042"></script>
 
-    <link href="/hono/docs/mermaid/mermaid.css?1609380635" type="text/css" rel="stylesheet" />
-    <script src="/hono/docs/mermaid/mermaid.js?1609380635"></script>
+    <link href="/hono/docs/mermaid/mermaid.css?1609467042" type="text/css" rel="stylesheet" />
+    <script src="/hono/docs/mermaid/mermaid.js?1609467042"></script>
     <script>
         mermaid.initialize({ startOnLoad: true });
     </script>