Update README.md

README.md

@@ -1 +1,30 @@
 # cellular-automaton
+This is an implementation of 256 elementary cellular automatons: http://mathworld.wolfram.com/ElementaryCellularAutomaton.html
+
+Example usage and output for rule 30:
+./cellaut.pl 10 30 30
+111111111111110111111111111111
+111111111111100011111111111111
+111111111111001101111111111111
+111111111110010000111111111111
+111111111100110111011111111111
+111111111001000010001111111111
+111111110011011110110111111111
+111111100100001100000011111111
+111111001101110001111101111111
+111110010000100110111000111111
+111100110111101000010011011111
+
+Example usage and output for rule 10:
+./cellaut.pl 10 30 110
+111111111111110111111111111111
+111111111111100111111111111111
+111111111111000111111111111111
+111111111110010111111111111111
+111111111100000111111111111111
+111111111001110111111111111111
+111111110001100111111111111111
+111111100101000111111111111111
+111111000000010111111111111111
+111110011111000111111111111111
+111100011110010111111111111111