Refactor directory comment, update file opening command, and improve German MP3 creation comment in generate_mp3.sh:

- Refactored a directory comment in the script for clarity.
- Updated the file opening command to use the correct path (/sdcard/handout.html).
- Improved the comment explaining the creation of German MP3 files.

generate_mp3.sh

@@ -19,12 +19,11 @@ category_order=("date" "time")
 # Directories
 txt_dir="/data/scripts/.text"
 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
+am start --user 0 -a android.intent.action.VIEW -d file:///sdcard/handout.html -t text
 
 # Function to create MP3 files
 create_mp3_files() {