Added Ray-Casting algorithm. Reformatted algorithm and test files. Updated README.md.

Author: sumtype

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016-2017 James Mason
+Copyright (c) 2016-2018 James Mason
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -1,6 +1,6 @@
 # Common Algorithms in JavaScript
 
-[![Build Status](https://travis-ci.org/sumtype/common-algorithms-js.svg?branch=master)](https://travis-ci.org/sumtype/common-algorithms-js) [![Coverage Status](https://coveralls.io/repos/github/sumtype/common-algorithms-js/badge.svg?branch=master)](https://coveralls.io/github/sumtype/common-algorithms-js?branch=master) [![Known Vulnerabilities](https://snyk.io/test/github/sumtype/common-algorithms-js/badge.svg)](https://snyk.io/test/github/sumtype/common-algorithms-js) [![BCH compliance](https://bettercodehub.com/edge/badge/sumtype/common-algorithms-js?branch=master)](https://bettercodehub.com/) [![JavaScript Style Guide](https://img.shields.io/badge/code_style-standard-brightgreen.svg)](https://standardjs.com)
+[![Build Status](https://travis-ci.org/sumtype/common-algorithms-js.svg?branch=master)](https://travis-ci.org/sumtype/common-algorithms-js) [![Coverage Status](https://coveralls.io/repos/github/sumtype/common-algorithms-js/badge.svg?branch=master)](https://coveralls.io/github/sumtype/common-algorithms-js?branch=master) [![Known Vulnerabilities](https://snyk.io/test/github/sumtype/common-algorithms-js/badge.svg)](https://snyk.io/test/github/sumtype/common-algorithms-js) [![JavaScript Style Guide](https://img.shields.io/badge/code_style-standard-brightgreen.svg)](https://standardjs.com)
 
 Common algorithms implemented in JavaScript with [Mocha](https://mochajs.org/)/[Chai](http://chaijs.com/) testing.
 
@@ -34,6 +34,10 @@ Common algorithms implemented in JavaScript with [Mocha](https://mochajs.org/)/[
 * [Depth First Search](https://github.com/sumtype/common-algorithms-js/blob/master/algorithms/depthFirstSearch.js)
 * [Breadth First Search](https://github.com/sumtype/common-algorithms-js/blob/master/algorithms/breadthFirstSearch.js)
 
+### Geometry
+
+* [Ray Casting](https://github.com/sumtype/common-algorithms-js/blob/master/algorithms/rayCasting.js)
+
 ## Testing
 
 To run the tests yourself you'll need to download the project and install its node module dependencies via [npm](https://www.npmjs.com/).  So, if you haven't already installed [Node.js](https://nodejs.org/) and npm for use on your command line hop over to the Node.js website and follow their download and installation instructions.  Once you have Node.js and npm installed, clone the project onto your computer using the following command in your terminal/command prompt/console: