Update Dockerfile

Dockerfile

@@ -12,4 +12,5 @@ RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 COPY ./app.py /code/app.py
 
 # Launch the server
-CMD ["uvicorn", "api:app", "--host", "0.0.0.0", "--port", "7860"]
+# Note: app:app refers to file 'app.py' and object 'app' inside it
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]