Update Dockerfile

Dockerfile

@@ -8,7 +8,13 @@ ADD main.py /main.py
 ADD loc.py /loc.py
 ADD make_bar_graph.py /make_bar_graph.py
 ADD colors.json /colors.json
-RUN apt-get update && apt-get -y install google-chrome-stable
+
+RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -
+RUN sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list'
+RUN apt-get -y update
+RUN apt-get install -y google-chrome-stable
+
+
 RUN apt-get update \
   && apt-get install -y python3-pip python3-dev \
   && cd /usr/local/bin \