Update Dockerfile

Dockerfile

@@ -7,6 +7,6 @@ COPY ./requirements.txt /code/requirements.txt
 RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 
 COPY ./llama-2-7b-chat.Q5_K_M.gguf /code/llama-2-7b-chat.Q5_K_M.gguf
-COPY ./main.py /code/main.py
+COPY ./app.py /code/app.py
 
 CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]