e317900aa7d36c5c231c8227da4a1f2d3b5e9528: update example's operating system output

update qna to 9.2.5

fix #2: run application as an unprivileged user

increase box's memory to 2 GB

fix provision: rename to .sh

use centos:7 for #2

fix #1: use centos-7.1

add readme

add node:onbuild Dockerfile

fix docker install

move site to .

add default port to site

add vagrant box with docker

add site/api/relevance-evaluate from bigfix/developer.bigfix.com