add docker

Dockerfile

@@ -0,0 +1,13 @@
+FROM python:3.9-slim
+WORKDIR /app
+COPY . /app
+
+RUN apt-get update && apt-get install -y \
+    build-essential libsndfile1 \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN pip install -e .
+RUN python -m unidic download
+RUN python melo/init_downloads.py
+
+CMD ["python", "./melo/app.py", "--port", "8800"]