Update README

[obycode]

Let's beautify the README in this repo in preparation for others using it. This new style is really nice looking:

       /     /   ▶ Project name   
      / --- /      Project description (one liner).
     /     /       Eli5 (one liner).
                  

<div align="center">

[![Introduction](https://img.shields.io/badge/%23-%20Introduction%20-orange?labelColor=gray)](#Introduction)
[![Features](https://img.shields.io/badge/%23-Features-orange?labelColor=gray)](#Features)
[![Getting started](https://img.shields.io/badge/%23-Quick%20Start-orange?labelColor=gray)](#Quick-start)
[![Documentation](https://img.shields.io/badge/%23-Documentation-orange?labelColor=gray)](#Documentation)
[![Contribute](https://img.shields.io/badge/%23-Contribute-orange?labelColor=gray)](#Contribute)

</div>

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## Introduction

## Features

## Quick-start

## Documentation

## Contribute

[obycode]

   /     /   ▶ Project name   
  / --- /      Project description (one liner).
 /     /       Eli5 (one liner).
              

---

Introduction

Features

Quick-start

Documentation

Contribute

[obycode]

See https://github.com/hirosystems/hord for an example.