Fixed docker build error

Author: wannaphong

Dockerfile

@@ -4,8 +4,8 @@ WORKDIR /usr/src/app
 EXPOSE 8000
 
 COPY requirements.txt ./
-RUN pip install --no-cache-dir -r requirements.txt
+RUN pip install -r requirements.txt
 
 COPY . .
 
-CMD ["python", "app.py"]
+CMD ["uvicorn", "main:app"]