tts: Remove usage instructions in favor of module

, espeak-ng

}:

# USAGE:

# $ tts-server --list_models

# # pick your favorite vocoder/tts model

# $ tts-server --model_name tts_models/en/ljspeech/glow-tts --vocoder_name vocoder_models/universal/libri-tts/fullband-melgan

#

# If you upgrade from an old version you may have to delete old models from ~/.local/share/tts

#

# For now, for deployment check the systemd unit in the pull request:

#   https://github.com/NixOS/nixpkgs/pull/103851#issue-521121136

let

  python = python3.override {

    packageOverrides = self: super: {