structure docs a bit

Change-Id: I35a0c3bd13117ab71d17700e1a1aae91cb14d409
Reviewed-on: https://asterix-gerrit.ics.uci.edu/891
Reviewed-by: Yingyi Bu <buyingyi@gmail.com>
Reviewed-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
diff --git a/asterixdb/asterix-doc/src/site/site.xml b/asterixdb/asterix-doc/src/site/site.xml
index 81049ca..4dadc09 100644
--- a/asterixdb/asterix-doc/src/site/site.xml
+++ b/asterixdb/asterix-doc/src/site/site.xml
@@ -73,12 +73,14 @@
       <item name="Documentation Home" href="index.html"/>
     </links>
 
-    <menu name="Documentation">
+    <menu name="Installation">
       <item name="Installing and Managing AsterixDB using Managix" href="install.html"/>
       <item name="Deploying AsterixDB using YARN" href="yarn.html"/>
+    </menu>
+
+    <menu name="AQL">
       <item name="AsterixDB 101: An ADM and AQL Primer" href="aql/primer.html"/>
       <item name="AsterixDB 101: An ADM and AQL Primer (For SQL Fans)" href="aql/primer-sql-like.html"/>
-      <item name="AsterixDB Javascript SDK" href="aql/js-sdk.html"/>
       <item name="Asterix Data Model (ADM)" href="aql/datamodel.html"/>
       <item name="Asterix Query Language (AQL)" href="aql/manual.html"/>
       <item name="AQL Functions" href="aql/functions.html"/>
@@ -88,7 +90,6 @@
       <item name="Support for Data Ingestion in AsterixDB" href="feeds/tutorial.html"/>
       <item name="Support for User Defined Functions in AsterixDB" href="udf.html"/>
       <item name="Filter-Based LSM Index Acceleration" href="aql/filters.html"/>
-      <item name="HTTP API to AsterixDB" href="api.html"/>
     </menu>
 
     <menu name="SQL++">
@@ -96,6 +97,11 @@
       <item name="The SQL++ query language in AsterixDB" href="sqlpp/sqlpp-in-asterixdb.html"/>
     </menu>
 
+    <menu name="API/SDK">
+      <item name="HTTP API to AsterixDB" href="api.html"/>
+      <item name="AsterixDB Javascript SDK" href="aql/js-sdk.html"/>
+    </menu>
+
     <menu ref="reports"/>
 
     <footer>