updates README

Author: alexlobera

LICENSE.md

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015-present LeanJS
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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-# react-scripts-ssr
+# react-scripts-ssr
+
+Create React apps with server-side rendering (SSR) with no configuration
+
+# Installation
+
+`npm install react-scripts-ssr --save-dev`
+
+# Getting started
+
+## Steps
+
+### Step 1
+
+In the scripts section of your package.json:
+
+- Replace `"start": "react-scripts start"` with `"start": "react-scripts-ssr start",`
+- Add `"build-server": "react-scripts-ssr build-server",`
+
+### Step 2
+
+Create the following file in src/server.js
+
+```javascript
+const React = require("react");
+const express = require("express");
+const { createSSRMiddleware } = require("react-scripts-ssr");
+const { renderToString } = require("react-dom/server");
+import App from "./App";
+
+const server = express();
+
+server.use(
+  createSSRMiddleware((req, res, next) => {
+    const body = renderToString(<App />);
+    next({ body }, req, res);
+  })
+);
+
+const PORT = process.env.REACT_APP_SERVER_SIDE_RENDERING_PORT || 8888;
+server.listen(PORT, () => {
+  console.log(`server running on port ${PORT}`);
+});
+```
+
+You can edit the server.js file with your custom code and other middlewares.
+
+### Step 3
+
+`npm start`