Drafts REST API page in ES reference docs

docs/reference/elasticsearch/index.md

@@ -1,4 +1,4 @@
-# Elasticsearch and index management
+# Elasticsearch
 
 This section contains reference information for {{es}} and index management features.
 
@@ -7,7 +7,7 @@ To learn more about {{es}} features and how to get started, refer to the [{{es}}
 For more details about query and scripting languages, check these sections:
 * [Query languages](../query-languages/index.md)
 * [Scripting languages](../scripting-languages/index.md)
- 
+
 {{es}} also provides the following REST APIs:
 
 * [{{es}} API](https://www.elastic.co/docs/api/doc/elasticsearch)