Add MP3 files, update formatting.

CircuitPython_Templates/mp3_multi_file_playback/code.py

@@ -1,8 +1,11 @@
 """
-CircuitPython multiple MP3 playback example. Plays two MP3 files consecutively, once time each.
+CircuitPython multiple MP3 playback example.
+Plays two MP3 files consecutively, once time each.
 
 Remove this line and all of the following docstring content before submitting to the Learn repo.
 
+INCLUDE THE MP3 FILES IN THIS DIRECTORY IN A DIRECTORY WITH THE RESULTING CODE.PY FILE.
+
 Choose the setup section appropriate for the board into which this template code is going. The
 default is for SAMD51 boards.
 

CircuitPython_Templates/mp3_single_file_playback/code.py

@@ -1,8 +1,11 @@
 """
-CircuitPython single MP3 playback example. Plays a single MP3 once.
+CircuitPython single MP3 playback example.
+Plays a single MP3 once.
 
 Remove this line and all of the following docstring content before submitting to the Learn repo.
 
+INCLUDE THE MP3 FILE IN THIS DIRECTORY IN A DIRECTORY WITH THE RESULTING CODE.PY FILE.
+
 Choose the setup section appropriate for the board into which this template code is going. The
 default is for SAMD51 boards.
 

MP3_Playback_RP2040/Pico_Multi_File/code.py

@@ -1,6 +1,6 @@
 """
-CircuitPython multiple MP3 playback example for Raspberry Pi Pico. Plays two MP3 files
-consecutively, once time each.
+CircuitPython multiple MP3 playback example for Raspberry Pi Pico.
+Plays two MP3 files consecutively, once time each.
 """
 import board
 import audiomp3

MP3_Playback_RP2040/Pico_Single_File/code.py

@@ -1,5 +1,6 @@
 """
-CircuitPython single MP3 playback example for Raspbeery Pi Pico. Plays a single MP3 once.
+CircuitPython single MP3 playback example for Raspberry Pi Pico.
+Plays a single MP3 once.
 """
 import board
 import audiomp3