Added reference to sphinx documentation to virtual-mcp11-aio lab

Change-Id: Ic0ea610a0a1edf99a292da3eed9790d602a5d7e9
diff --git a/classes/cluster/virtual-mcp11-aio/init.yml b/classes/cluster/virtual-mcp11-aio/init.yml
index 1694dd3..8a2b105 100755
--- a/classes/cluster/virtual-mcp11-aio/init.yml
+++ b/classes/cluster/virtual-mcp11-aio/init.yml
@@ -8,6 +8,7 @@
 - system.salt.master.pkg
 - system.salt.minion.ca.salt_master
 - system.salt.minion.cert.proxy
+- system.sphinx.server.doc.reclass
 - system.reclass.storage.salt
 - system.mysql.client
 - system.memcached.server.single