Update Dockerfile

Dockerfile

@@ -5,6 +5,7 @@ ENV PATH="/home/user/.local/bin:$PATH"
 WORKDIR /app
 COPY --chown=user ./requirements.txt requirements.txt
 RUN pip install --no-cache-dir --upgrade -r requirements.txt
-COPY --chown=user . /app
+COPY --chown=user . /app.py
+EXPOSE 7860
 
 CMD ["python", "app.py"]