DOC: Minor rewording

Author: tonysyu

examples/pie_and_polar_charts/pie_demo_features.py

@@ -9,12 +9,12 @@
     * drop-shadow
     * custom start angle
 
-
 Note about the custom start angle:
 
 The default ``startangle`` is 0, which would start the "Frogs" slice on the
-x-axis. This example sets ``startangle = 90`` such that everything is rotated
-counter-clockwise by 90 degrees, the frog slice starts on the positive y-axis.
+positive x-axis. This example sets ``startangle = 90`` such that everything is
+rotated counter-clockwise by 90 degrees, and the frog slice starts on the
+positive y-axis.
 """
 import matplotlib.pyplot as plt