Document deprecated nl_ parameters

[janvlug]

I used some examples in the past to create ReSpec to get quickly started.

Some of these examples had next to the config.js also a organisation-config.js.

In several of them, there are parameters that start with an nl_ prefix. Use this search to find them in this project:

https://github.com/search?q=repo%3ALogius-standaarden%2Frespec%20nl_&type=code

Documented are:
nl_organisationName
nl_organisationPublishURL
nl_organisationStylesURL

These are not documented. Should they be documented as deprecated, or added to the documentation, or totally removed from the files in this repository?
nl_emailcomments
nl_markdownSplitH1sections
nl_github
nl_organisationPrefix
nl_markdownTableClass
nl_markdownEmbedImageInFigure
nl_logo