Added description for each possible turtle command.

Signed-off-by: Charlotte Pierce <charlotte@malformed-bits.com>
Stopped crash from happening when a production was not found for a movement character.

Signed-off-by: Charlotte Pierce <charlotte@malformed-bits.com>
Added sample command string application.

Signed-off-by: Charlotte Pierce <charlotte@malformed-bits.com>
Turtle now resets it's position and heading after each command string evolution.

Signed-off-by: Charlotte Pierce <charlotte@malformed-bits.com>
Switched the symbols for turn left and turn right.

Signed-off-by: Charlotte Pierce <charlotte@malformed-bits.com>
Created demonstration of a quadratic Koch island.

Signed-off-by: Charlotte Pierce <charlotte@malformed-bits.com>