docs: document known issues with Viewperf 11
diff --git a/docs/contents.html b/docs/contents.html
index df0fb64..8882e73 100644
--- a/docs/contents.html
+++ b/docs/contents.html
@@ -64,6 +64,7 @@
<LI><A HREF="mangling.html" target="MainFrame">Function Name Mangling</A>
<LI><A href="llvmpipe.html" target="MainFrame">Gallium llvmpipe driver</A>
<LI><A href="postprocess.html" target="MainFrame">Gallium post-processing</A>
+<LI><A href="viewperf.html" target="MainFrame">Viewperf Issues</A>
</ul>
<b>Developer Topics</b>