Update README.rst

Author: jposada202020

README.rst

@@ -24,7 +24,7 @@ Introduction
     :alt: Code Style: Black
 
 MicroPython Driver for the PCA9685
-This include the a servo helper. This library is taken from the
+This include the a servo helper. The servo helper is taken from the
 adafruit_circuitpython_motor library and adapted to MicroPython.
 
 If you are interested in a great MicroPython PCA9685 library take a look at