Update README.md

Author: buehlerj

README.md

@@ -1 +1,8 @@
 # RayTracer-Java
+
+This is a from-scratch project written in Java using Eclipse that utilizes Ray Tracing Technology.
+
+## How to Run
+Running the main method in RayTracer, the application can take in a scene file (see examples in [Models and Scenes](/Models\ and\ Scenes)) and `.obj`/`.mat` polygonal files, and will output a `.ppm` image according to the specifications.
+
+Another way of running the application would be without arguments, in which case it will generate spheres in an evironmnet and output a file named `masterwork.ppm`.