Update game_of_life.py (TheAlgorithms#8703)

Rectify spelling in docstring

Author: pronoym99

cellular_automata/game_of_life.py

@@ -34,7 +34,7 @@
 from matplotlib import pyplot as plt
 from matplotlib.colors import ListedColormap
 
-usage_doc = "Usage of script: script_nama <size_of_canvas:int>"
+usage_doc = "Usage of script: script_name <size_of_canvas:int>"
 
 choice = [0] * 100 + [1] * 10
 random.shuffle(choice)