change display_clue_data to simple_text_display in readme and docstring

Author: FoamyGuy

README.rst

@@ -74,7 +74,7 @@ This example displays sensor and input data on the CLUE display.
 
     clue.sea_level_pressure = 1020
 
-    clue_data = clue.display_clue_data(title="CLUE Sensor Data!", title_scale=2, num_lines=15)
+    clue_data = clue.simple_text_display(title="CLUE Sensor Data!", title_scale=2, num_lines=15)
 
     while True:
         clue_data[0].text = "Acceleration: {:.2f} {:.2f} {:.2f}".format(*clue.acceleration)

adafruit_clue.py

@@ -869,7 +869,7 @@ def simple_text_display(title=None, title_color=(255, 255, 255), title_scale=1,
 
         Setup occurs before the loop. For data to be dynamically updated on the display, you must
         include the data call in the loop by using ``.text =``. For example, if setup is saved as
-        ``clue_data = display_clue_data()`` then ``clue_data[0].text = clue.proximity`` must be
+        ``clue_data = simple_text_display()`` then ``clue_data[0].text = clue.proximity`` must be
         inside the ``while True:`` loop for the proximity data displayed to update as the
         values change. You must call ``show()`` at the end of the list for anything to display.
         See example below for usage.