Move TOC below main title and make it horizontal

API.md

-**Table of Contents**
+# Flot Reference #
 
-- [Flot Reference](#flot-reference)
-- [Data Format](#data-format)
-- [Plot Options](#plot-options)
-- [Customizing the legend](#customizing-the-legend)
-- [Customizing the axes](#customizing-the-axes)
-- [Multiple axes](#multiple-axes)
-- [Time series data](#time-series-data)
-- [Customizing the data series](#customizing-the-data-series)
-- [Customizing the grid](#customizing-the-grid)
-- [Specifying gradients](#specifying-gradients)
-- [Plot Methods](#plot-methods)
-- [Hooks](#hooks)
-- [Plugins](#plugins)
-- [Version number](#version-number)
+**Table of Contents**
 
-# Flot Reference #
+[Introduction](#introduction)
+| [Data Format](#data-format)
+| [Plot Options](#plot-options)
+| [Customizing the legend](#customizing-the-legend)
+| [Customizing the axes](#customizing-the-axes)
+| [Multiple axes](#multiple-axes)
+| [Time series data](#time-series-data)
+| [Customizing the data series](#customizing-the-data-series)
+| [Customizing the grid](#customizing-the-grid)
+| [Specifying gradients](#specifying-gradients)
+| [Plot Methods](#plot-methods)
+| [Hooks](#hooks)
+| [Plugins](#plugins)
+| [Version number](#version-number)
+
+---
+
+## Introduction ##
 
 Consider a call to the plot function: