Added Docker configuration

DockerFile

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+FROM ubuntu:20.04
+
+MAINTANER Abel Fokkinga "abel@fokkinga.com"
+
+RUN apt-get update -y && \
+    apt-get install -y python-pip python-dev
+
+WORKDIR /app
+
+RUN pip install flask, requests, wtforms, json
+
+COPY . /app
+
+ENTRYPOINT [ "python" ]
+
+CMD [ "main.py" ]