Project website is broken

Related to #292 and #332

Various places of this project refer to https://eclipse-ee4j.github.io/jsonb-api (also the "About" section of this GitHub repo), however all these links lead to a 404 page, probably because this repository was moved from the eclipse-ee4j to the jakartaee organization.

In general there are multiple issues:

• Incorrect links to https://eclipse-ee4j.github.io/jsonb-api
• gh-pages branch of this project contains irrelevant content about "TCK User's Guide for Technology Implementors", see https://jakartaee.github.io/jsonb-api/toc.html
  • And README contains dummy content, see https://jakartaee.github.io/jsonb-api/
• Maybe: Project page is not as clean and useful as it used to be; compare with https://javaee.github.io/jsonb-spec/index.html (source code)

[jmini]

It would be great to fix this, because when you are an outsider, all those broken websites/links do not make a good impression.

[m-reza-rahman]

I think this could be tagged with "good first issue" and/or "help wanted". This can't be too hard?