Fix SPEAKER in use error, update docs

Author: kattni

adafruit_clue.py

@@ -165,8 +165,6 @@ def __init__(self):
         # Define audio:
         self._mic = audiobusio.PDMIn(board.MICROPHONE_CLOCK, board.MICROPHONE_DATA,
                                      sample_rate=16000, bit_depth=16)
-        self._speaker = digitalio.DigitalInOut(board.SPEAKER)
-        self._speaker.switch_to_output()
         self._sample = None
         self._samples = None
         self._sine_wave = None
@@ -829,7 +827,7 @@ def simple_text_display(title="CLUE Sensor Data", title_color=(255, 255, 255), t
 
           from adafruit_clue import clue
 
-          clue_data = clue.display_clue_data(title="CLUE Sensor Data!", title_scale=2, num_lines=3)
+          clue_data = clue.simple_text_display(title="CLUE Sensor Data!", title_scale=2, num_lines=3)
 
           while True:
               clue_data[0].text = "Acceleration: {:.2f} {:.2f} {:.2f}".format(*clue.acceleration)