improved camera, more interesting scene

Author: jsdf

.gitignore

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-test_*
+test_*
+output_*

README.md

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+# applescript-raytracer
+
+an implementation of [raytracing in one weekend](https://raytracing.github.io/books/RayTracingInOneWeekend.html) in applescript
+
+example render:
+
+![rendered output of raytracer](render.jpg)
+
+this render took about 37 minutes
+
+to run it yourself:
+
+```sh
+./raytracer.applescript
+```
+
+you can also edit the parameters passed to writeRaytracedImage() to adjust the resolution and quality of the rendered image, which will substantially affect the time taken to render