Update README_en.md

README_en.md

@@ -55,4 +55,20 @@ Next, run the web demo to access the model:
 ```bash
 python web_demo.py
 ```
-You can then access the model by visiting `http://localhost:8888`.
+You can then access the model by visiting `http://localhost:8888`.
+
+### Additional Dependencies
+If running the web_demo prompts that `matcha.models` is missing, you might see the following error:
+
+```bash
+ModuleNotFoundError: No module named 'matcha.models'; 'matcha' is not a package
+```
+
+In this case, you need to install `matcha-tts`:
+
+```bash
+# First, uninstall gradio and diffusers to avoid version conflicts
+pip uninstall gradio
+pip uninstall diffusers
+pip install matcha-tts
+```