feature/ add back original doc

docs/source/inference.md

@@ -26,6 +26,12 @@ tts --list_models
 
 Run a TTS model, from the release models list, with its default vocoder. (Simply copy and paste the full model names from the list as arguments for the command below.)
 
+```bash
+tts --text "Text for TTS" \
+    --model_name "<type>/<language>/<dataset>/<model_name>" \
+    --out_path folder/to/save/output.wav
+```
+
 Run a tts and a vocoder model from the released model list. Note that not every vocoder is compatible with every TTS model.
 
 ```bash