Link to Snapshot documentation

Author: sdelamo

src/docs/asciidoc/index.tmpl

@@ -84,7 +84,13 @@ img {
 
 		<hr />
 
-		<h2>Current Documentation</h2>
+        <h2>Grails Spring Security LDAP Plugin - Documentation</h2>
+
+		<ul>
+			<li><a href="/grails-spring-security-ldap/snapshot/index.html">Documentation Snapshot</a></li>
+		</ul>
+
+		<h2>Current Documentation (4.x)</h2>
         		<ul>
         			<li><a href="/grails-spring-security-ldap/v4/index.html">User guide</a></li>
         </ul>