Documentation Revamp

Co-authored-by: jbdoumenjou <jb.doumenjou@gmail.com>

docs/check.Dockerfile

@@ -0,0 +1,43 @@
+
+FROM alpine:3.9 as alpine
+
+# The "build-dependencies" virtual package provides build tools for html-proofer installation.
+# It compile ruby-nokogiri, because alpine native version is always out of date
+# This virtual package is cleaned at the end.
+RUN apk --no-cache --no-progress add \
+    libcurl \
+    ruby \
+    ruby-bigdecimal \
+    ruby-etc \
+    ruby-ffi \
+    ruby-json \
+  && apk add --no-cache --virtual build-dependencies \
+    build-base \
+    libcurl \
+    libxml2-dev \
+    libxslt-dev \
+    ruby-dev \
+  && gem install --no-document html-proofer -v 3.10.2 \
+  && apk del build-dependencies
+
+# After Ruby, some NodeJS YAY!
+RUN apk --no-cache --no-progress add \
+    git \
+    nodejs \
+    npm \
+  && npm install markdownlint@0.12.0 markdownlint-cli@0.13.0 --global
+
+# Finally the shell tools we need for later
+# tini helps to terminate properly all the parallelized tasks when sending CTRL-C
+RUN apk --no-cache --no-progress add \
+    ca-certificates \
+    curl \
+    tini
+
+COPY ./scripts/verify.sh /verify.sh
+COPY ./scripts/lint.sh /lint.sh
+
+WORKDIR /app
+VOLUME ["/tmp","/app"]
+
+ENTRYPOINT ["/sbin/tini","-g","sh"]