update README to explain the future of next on netlify (#114)

* update README to explain the future of Next.js on Netlify

* requested changes

Author: lindsaylevine

.prettierignore

@@ -43,3 +43,6 @@ jspm_packages
 # Optional REPL history
 .node_repl_history
 .next
+
+# Github
+.github

README.md

@@ -15,13 +15,25 @@
   </a>
 </p>
 
-
 `next-on-netlify` is a utility for enabling server-side rendering in Next.js on Netlify. It wraps your application in a tiny compatibility layer, so that pages can use Netlify Functions to be server-side rendered.
 
-**TL;DR: You can enable SSR in your Next.js applications with 3 simple steps, listed [here](#setup)!**
+- Build plugin [@netlify/plugin-nextjs](https://github.com/netlify/netlify-plugin-nextjs)
+- [Plugin npm package](https://www.npmjs.com/package/@netlify/plugin-nextjs)
+
+## Next on Netlify Roadmap
+
+The future of Next.js on Netlify is growing beyond `next-on-netlify`. The recommended path forward is to install [@netlify/plugin-nextjs](https://github.com/netlify/netlify-plugin-nextjs) - a build plugin released and supported by the team behind `next-on-netlify`.
+
+The plugin relies on `next-on-netlify` but offers a smoother experience, including:
+
+1. one-click, zero-config installation
+2. allowing custom functions and publish directories
 
-- Demo: https://next-on.netlify.com/
-- Example repository: https://github.com/netlify-labs/next-on-netlify-demo
+See the [plugin's README](https://github.com/netlify/netlify-plugin-nextjs#readme) for more information. Our team's end goal is to make the Next.js on Netlify experience as seamless as possible.
+
+Note: since `next-on-netlify` will remain the primary source of logic for Next.js on Netlify, the existing `next-on-netlify` setup will continue to work for users who prefer manual installation and configuration.
+
+The plugin can be found on [npm here](https://www.npmjs.com/package/@netlify/plugin-nextjs).
 
 ## Table of Contents
 
@@ -30,6 +42,7 @@
   - [1. Set Next.js target to serverless](#1-set-nextjs-target-to-serverless)
   - [2. Add postbuild hook](#2-add-postbuild-hook)
   - [3. Configure Netlify](#3-configure-netlify)
+- [Demo](#demo)
 - [Optional Extras](#optional-extras)
   - [Preview Locally](#preview-locally)
   - [Custom Netlify Redirects](#custom-netlify-redirects)
@@ -110,6 +123,11 @@ Note: `out_functions` and `out_publish` are hard-coded into next-on-netlify. The
 
 We're done. Let's deploy 🚀🚀🚀
 
+## Demo
+
+- Site: https://next-on.netlify.com/
+- Code: https://github.com/netlify-labs/next-on-netlify-demo
+
 ## Optional Extras
 
 #### Preview Locally