auto

assign1/README.md

@@ -146,6 +146,8 @@ and functions:
 `Tile`, `Direction`, `rotate2DInts`, and  `rotate2D<T>` must all be defined
 *outside* your `Twos` class, not inside.
 
+The rotation functions work as follows: ![rotate](rotate.svg)
+
 The above must all be created exactly as specified or the unit tests
 will fail. *DO NOT* change even a single character of the unit tests
 files, just copy it verbatim.