add header and toc

Author: dai-chen

docs/sql/endpoints.md

@@ -1,5 +1,21 @@
+---
+layout: default
+title: Endpoints
+parent: SQL
+nav_order: 4
+---
 
-# Endpoint
+
+# Endpoints
+
+---
+
+#### Table of contents
+- TOC
+{:toc}
+
+
+---
 
 ## Introduction
 

docs/sql/monitoring.md

@@ -1,5 +1,21 @@
+---
+layout: default
+title: Plugin Monitoring
+parent: SQL
+nav_order: 7
+---
+
 # Plugin Monitoring
 
+---
+
+#### Table of contents
+- TOC
+{:toc}
+
+
+---
+
 ## Introduction
 
 By a stats endpoint, you are able to collect metrics for the plugin

docs/sql/protocol.md

@@ -1,5 +1,21 @@
+---
+layout: default
+title: Protocol
+parent: SQL
+nav_order: 5
+---
+
 # Protocol
 
+---
+
+#### Table of contents
+- TOC
+{:toc}
+
+
+---
+
 ## Introduction
 
 For the protocol, SQL plugin provides multiple response formats for

docs/sql/settings.md

@@ -1,5 +1,21 @@
+---
+layout: default
+title: Plugin Settings
+parent: SQL
+nav_order: 6
+---
+
 # Plugin Settings
 
+---
+
+#### Table of contents
+- TOC
+{:toc}
+
+
+---
+
 ## Introduction
 
 When Elasticsearch bootstraps, SQL plugin will register a few settings