Revert "remove node_modules"

This reverts commit 2fb5731f23.

node_modules/shebang-regex/readme.md

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+# shebang-regex [![Build Status](https://travis-ci.org/sindresorhus/shebang-regex.svg?branch=master)](https://travis-ci.org/sindresorhus/shebang-regex)
+
+> Regular expression for matching a [shebang](https://en.wikipedia.org/wiki/Shebang_(Unix))
+
+
+## Install
+
+```
+$ npm install --save shebang-regex
+```
+
+
+## Usage
+
+```js
+var shebangRegex = require('shebang-regex');
+var str = '#!/usr/bin/env node\nconsole.log("unicorns");';
+
+shebangRegex.test(str);
+//=> true
+
+shebangRegex.exec(str)[0];
+//=> '#!/usr/bin/env node'
+```
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)