Merge pull request #204 from ewels/readme-tweak

Add Introduction header to readme

Author: phue

README.md

@@ -9,6 +9,8 @@
 [![Docker](https://img.shields.io/docker/automated/nfcore/methylseq.svg)](https://hub.docker.com/r/nfcore/methylseq)
 [![Get help on Slack](http://img.shields.io/badge/slack-nf--core%20%23methylseq-4A154B?logo=slack)](https://nfcore.slack.com/channels/methylseq)
 
+## Introduction
+
 **nf-core/methylseq** is a bioinformatics analysis pipeline used for Methylation (Bisulfite) sequencing data. It pre-processes raw data from FastQ inputs, aligns the reads and performs extensive quality-control on the results.
 
 The pipeline is built using [Nextflow](https://www.nextflow.io), a workflow tool to run tasks across multiple compute infrastructures in a very portable manner. It comes with docker containers making installation trivial and results highly reproducible.