Update Dockerfile

Dockerfile

@@ -8,7 +8,7 @@ WORKDIR /code
 COPY . .
 
 # Install any needed packages specified in requirements.txt
-RUN pip install --no-cache-dir -r requirements.txt
+RUN pip install -r requirements.txt
 
 # Make port 8000 available to the world outside this container
 EXPOSE 8000