docs: update intro

Author: jscottsmith

documentation/docs/intro.md

@@ -2,34 +2,10 @@
 sidebar_position: 1
 ---
 
-# Tutorial Intro
+# React Scroll Parallax
 
-Let's discover **Docusaurus in less than 5 minutes**.
+[![npm version](https://badge.fury.io/js/react-scroll-parallax.svg)](https://badge.fury.io/js/react-scroll-parallax) [![Build Status](https://travis-ci.org/jscottsmith/react-scroll-parallax.svg?branch=master)](https://travis-ci.org/jscottsmith/react-scroll-parallax) [![codecov](https://codecov.io/gh/jscottsmith/react-scroll-parallax/branch/master/graph/badge.svg)](https://codecov.io/gh/jscottsmith/react-scroll-parallax)
 
-## Getting Started
+React hooks and components to create parallax scroll effects for banners, images or any other DOM elements. Utilizes [Parallax Controller](https://github.com/jscottsmith/parallax-controller) to add vertical or horizontal scrolling based effects to elements. [Optimized](https://parallax-controller.vercel.app/docs/performance) to _reduce_ jank on scroll and works with SSR and SSG rendered React apps.
 
-Get started by **creating a new site**.
-
-Or **try Docusaurus immediately** with **[docusaurus.new](https://docusaurus.new)**.
-
-## Generate a new site
-
-Generate a new Docusaurus site using the **classic template**:
-
-```shell
-npm init docusaurus@latest my-website classic
-```
-
-## Start your site
-
-Run the development server:
-
-```shell
-cd my-website
-
-npx docusaurus start
-```
-
-Your site starts at `http://localhost:3000`.
-
-Open `docs/intro.md` and edit some lines: the site **reloads automatically** and displays your changes.
+If you're coming from [V2](https://github.com/jscottsmith/react-scroll-parallax/tree/v2.4.2), here's a [migration guide](https://github.com/jscottsmith/react-scroll-parallax/blob/master/docs/migration-guide.md).