add new sub-project asterix-doc
add first stub for language reference in markdown format
diff --git a/pom.xml b/pom.xml
index 20efdb3..f4c46c6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -84,6 +84,7 @@
                 <module>asterix-server</module>
                 <module>asterix-installer</module>
                 <module>asterix-events</module>
+                <module>asterix-doc</module>
         </modules>
 
 	<repositories>