HDDS-2122. Broken logo image on category sub-pages (#1437)

Signed-off-by: Nanda kumar <nanda@apache.org>
(cherry picked from commit 4a9a6a21b8ebe6c762b1050a802cb7dd80f004da)

hadoop-hdds/docs/themes/ozonedoc/layouts/partials/navbar.html

@@ -24,7 +24,7 @@
         <span class="icon-bar"></span>
       </button>
       <a href="#" class="navbar-left" style="height: 50px; padding: 5px 5px 5px 0;">
-        <img src="ozone-logo-small.png" width="40"/>
+        <img src="{{ "ozone-logo-small.png" | relURL }}" width="40"/>
       </a>
       <a class="navbar-brand hidden-xs" href="#">
         Apache Hadoop Ozone/HDDS documentation