add the "pil way" of showing an image to the simple.py

examples/simple.py

@@ -6,15 +6,19 @@ Generating a square wordcloud from the US constitution using default arguments.
 """
 
 from os import path
-import matplotlib.pyplot as plt
 from wordcloud import WordCloud
 
 d = path.dirname(__file__)
 
 # Read the whole text.
 text = open(path.join(d, 'constitution.txt')).read()
+
+# Generate a word cloud image
 wordcloud = WordCloud().generate(text)
-# Open a plot of the generated image.
+
+# Display the generated image:
+# the matplotlib way:
+import matplotlib.pyplot as plt
 plt.imshow(wordcloud)
 plt.axis("off")
 
@@ -24,3 +28,7 @@ plt.figure()
 plt.imshow(wordcloud)
 plt.axis("off")
 plt.show()
+
+# The pil way (if you don't have matplotlib)
+#image = wordcloud.to_image()
+#image.show()