docs: the How to use snippet loads the voice through the model manager; from_hf does not exist

README.md

@@ -23,21 +23,29 @@ This is a text-to-speech voice model for **Occitan**. The voice is **Miro**, a m
 
 Install [phoonnx](https://github.com/TigreGotico/phoonnx) and run:
 
+```bash
+pip install phoonnx
+```
+
 ```python
 import wave
 from phoonnx.config import SynthesisConfig
-from phoonnx.voice import TTSVoice
+from phoonnx.model_manager import TTSModelManager
 
-voice = TTSVoice.from_hf("OpenVoiceOS/phoonnx_oc_miro_unicode")
+manager = TTSModelManager()
+manager.load()
+manager.merge_default_voices()
+voice = manager.voices["OpenVoiceOS/phoonnx_oc_miro_unicode"].load()
 
 synthesis_config = SynthesisConfig(noise_scale=0.667, length_scale=1.0, noise_w_scale=0.8)
 
 with wave.open("output.wav", "wb") as wav_file:
-    voice.synthesize_wav("Bon jorn, cossí vas?", wav_file, synthesis_config)
+    voice.synthesize_wav("bon jorn, cossí vas?", wav_file, synthesis_config)
 ```
 
 You can also use this model in OVOS with
-[ovos-tts-plugin-phoonnx](https://github.com/OpenVoiceOS/ovos-tts-plugin-phoonnx):
+[ovos-tts-plugin-phoonnx](https://github.com/TigreGotico/phoonnx); the
+`ovos-tts-plugin-phoonnx` entry point ships inside the `phoonnx` package:
 
 ```json
 {