Wrote proposal in README.md

It took me a while to think of an animation that I could crate
procedurally but not have it be overly complicated. I was thinking of
doing an inch worm but I'm not sure what kind of function to use for
that shape --maybe a gaussian.

drawing.py

@@ -1,7 +1,7 @@
 # drawing.py
 # ----------
-# By ____(you)___________
+# By Tristan Gaeta
 #
-# (Briefly describe what this program does.)
+# This program makes an animation of a snake using Turtle graphics.
 
 from turtle import *