fix: requiremnt file

Dockerfile

@@ -7,7 +7,7 @@ COPY ./requirements.txt /code/requirements.txt
 RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 
 
-COPY ./main.py /code/
+COPY ./app.py /code/
 
 
 CMD ["fastapi", "run", "app.py", "--port", "80"]