Merge pull request #127 from tossyi/fix-dockerfile

Update Dockerfile: adding the required environment variables

Dockerfile

@@ -73,6 +73,9 @@ ENV ANONYMIZED_TELEMETRY=false
 ENV DISPLAY=:99
 ENV RESOLUTION=1920x1080x24
 ENV VNC_PASSWORD=vncpassword
+ENV CHROME_PERSISTENT_SESSION=true
+ENV RESOLUTION_WIDTH=1920
+ENV RESOLUTION_HEIGHT=1080
 
 # Set up supervisor configuration
 RUN mkdir -p /var/log/supervisor