update contributors

Author: HaoyL666

contributors.md

@@ -33,4 +33,8 @@
 [Jeffrey Na](https://github.com/jeffreyNa),
 [Brisa Zhu](https://github.com/beezoo10),
 [Kelsi Webb](https://github.com/kelsicw),
-[Justin Poirier](https://github.com/jcpoirier20)
+[Justin Poirier](https://github.com/jcpoirier20)
+[Tyler Coryell](https://github.com/Tcoryell)
+[Edwin Leong](https://github.com/edwinlny)
+[Eisha Kaushal](https://github.com/eishakaushal)
+[Haoyu Liu](https://github.com/HaoyL666)