Updated docs

docs/index.asciidoc

@@ -8,6 +8,7 @@ The official Node.js client for Elasticsearch.
 * Configurable, automatic discovery of cluster nodes.
 * Persistent, Keep-Alive connections.
 * Load balancing (with pluggable selection strategy) across all available nodes.
+* TypeScript support out of the box.
 
 == Install
 [source,sh]
@@ -46,3 +47,5 @@ client.search({
 * TypeScript support
 * Extend the client
 * Breaking changes from old client
+* Authentication
+* Child client