If you want to use TTS functionality immediately you can simply use:
python quick_start.py
This will generate everything in the default sentences.txt file and
output to a new 'quick_start' folder where you can playback the wav
files and take a look at the attention plots
You can also use that script to generate custom tts sentences and/or use '-u' to generate unbatched (better audio quality):
python quick_start.py -u --input_text "What will happen if I run this command?"