Fixed typo

Dockerfile

@@ -12,7 +12,7 @@ WORKDIR /app
 # Install pip requirements
 COPY requirements.txt ./app/requirements.txt
 #COPY summarize_mp4_video.py /app/app.py
-RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
+RUN pip install --no-cache-dir --upgrade -r /app/requirements.txt
 RUN apt-get update && apt-get install -y ffmpeg
 
 # COPY . /app