[doc] Add direct link to the aird editor's documentation

Change-Id: I4980eeb62186974f8c2a54b80c5907e0bbd0a77e
Signed-off-by: Pierre-Charles David <pierre-charles.david@obeo.fr>
diff --git a/plugins/org.eclipse.sirius.doc/doc/index.html b/plugins/org.eclipse.sirius.doc/doc/index.html
index 2c300c3..3a58fe2 100644
--- a/plugins/org.eclipse.sirius.doc/doc/index.html
+++ b/plugins/org.eclipse.sirius.doc/doc/index.html
@@ -37,6 +37,9 @@
 	    <li>
 	      <a href="user/general/Modeling%20Project.html">Modeling Project</a>
 	    </li>
+        <li>
+          <a href="user/general/Aird_Editor.html">Aird Editor</a>
+        </li>
 	    <li>
 	      <a href="user/diagrams/Diagrams.html">Diagrams</a>
 	    </li>