Reverted this because it only works locally on MACOS

Author: dylanrubini

Dockerfile

@@ -1,11 +1,12 @@
-FROM ruby:latest
+FROM ubuntu:latest
 ENV DEBIAN_FRONTEND noninteractive
 
 Label MAINTAINER Amir Pourmand
 
 RUN apt-get update -y && apt-get install -y --no-install-recommends \
     locales \
     imagemagick \
+    ruby-full \
     build-essential \
     zlib1g-dev \
     jupyter-nbconvert \