Fix the problem that document artifacts created by jenkins has no css.

FixJenkinsDocumentCSSProblem.md

The problem that CSS is striped is because of the Content Security Policy in Jenkins

Ref: https://stackoverflow.com/questions/35783964/jenkins-html-publisher-plugin-no-css-is-displayed-when-report-is-viewed-in-j

For jenkins running on Mac, edit the jenkins runner file $ vim /Library/Application Support/Jenkins/jenkins-runner.sh

Then append the javaArgs with -Dhudson.model.DirectoryBrowserSupport.CSP=

Restart jenkins.