Add Apache Incubator disclaimer on S4 incubator homepage
diff --git a/website/content/index.haml b/website/content/index.haml
index 283d3e3..b288a3b 100644
--- a/website/content/index.haml
+++ b/website/content/index.haml
@@ -58,6 +58,13 @@
         %h4{:class=>"subsecheader"}= "fault-tolerance"
         %p= "When a server in the cluster fails, a stand-by server is automatically activated to take over the tasks. Checkpointing and recovery minimize state loss."
 
+    .horrule
+
+    #sec_motivation{:class=>"span-18"}
+      %h2{:class=>"secheader"}= "disclaimer"
+      %p= "Apache S4 is an effort undergoing incubation at the Apache Software Foundation (ASF), sponsored by the Apache Incubator PMC.  Incubation is required of all newly accepted projects until a further review indicates that the infrastructure, communications, and decision making process have stabilized in a manner consistent with other successful ASF projects.  While incubation status is not necessarily a reflection of the completeness or stability of the code, it does indicate that the project has yet to be fully endorsed by the ASF. "
+
+
 #sidebar{:class=>"span-5 last"}
   #download
     #latest_head