Add Yohai Magen to AUTHORS.md (#1417)

Author: yohaimagen

AUTHORS.md

@@ -20,3 +20,4 @@ The following people have contributed code and/or documentation to the project
 * [Tyler Newton](http://www.tnewton.com/) | [0000-0002-1560-6553](https://orcid.org/0000-0002-1560-6553) | University of Oregon
 * [Wei Ji Leong](https://github.com/weiji14) | [0000-0003-2354-1988](https://orcid.org/0000-0003-2354-1988) | Victoria University of Wellington
 * [William Schlitzer](https://github.com/willschlitzer) | [0000-0002-5843-2282](https://orcid.org/0000-0002-5843-2282) | Unaffiliated
+* [Yohai Magen](https://github.com/yohaimagen) | [0000-0002-4892-4013](https://orcid.org/0000-0002-4892-4013) | Tel Aviv University