docs: Documentation update

Change-Id: I6f916eb822a59e980e8fb1134886c3431755119c
diff --git a/docs/ns3_html_theme/ns3_doxy_header.html b/docs/ns3_html_theme/ns3_doxy_header.html
index a927ead..a63e509 100644
--- a/docs/ns3_html_theme/ns3_doxy_header.html
+++ b/docs/ns3_html_theme/ns3_doxy_header.html
@@ -33,7 +33,7 @@
   </td>
   <td id="projecttext">
    <div id="projectbrief">NS-3 based Named Data Networking (NDN) simulator</div>
-   <span id="projectnumber">ndnSIM: NDN, CCN, CCNx, content centric networks</span>
+   <span id="projectnumber">ndnSIM 2.0: NDN, CCN, CCNx, content centric networks</span>
   </td>
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