Update generate_mp3.sh script

The generate_mp3.sh script has been updated with the following changes:

- Added a comment to specify the directory for MP3 files.
- Implemented a command to open the handout.md file using the 'am start' command.
- The 'am start' command opens the file in VIEW mode with the 'text/plain' MIME type.
- This enhancement provides a convenient way to access the handout.md file directly.

The commit aims to improve the functionality and user experience of the generate_mp3.sh script by enabling easy access to the handout file.

generate_mp3.sh

@@ -23,6 +23,9 @@ mp3_dir="/data/scripts/.mp3"
 # remove old files
 rm -f "$txt_dir"/*complete.txt
 
+# open handout.md file
+am start --user 0 -a android.intent.action.VIEW -d file:///data/local/tmp/file.txt -t text/plain
+
 # Function to create MP3 files
 create_mp3_files() {