Shake CI and docs up

ci/image/Dockerfile

@@ -0,0 +1,12 @@
+FROM node:12-buster
+
+RUN apt-get update && apt-get install -y \
+	libxkbfile-dev \
+	libsecret-1-dev \
+	dumb-init
+
+RUN curl -L https://github.com/mvdan/sh/releases/download/v3.0.1/shfmt_v3.0.1_linux_amd64 > /usr/local/bin/shfmt && chmod +x /usr/local/bin/shfmt
+
+COPY entrypoint.sh /bin/entrypoint.sh
+
+ENTRYPOINT ["dumb-init", "/bin/entrypoint.sh"]