Reorganize - move examples into subfolder; move README content to the…

… wiki

README.md

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-elements
-========
+JATS4R Participant Hub
+======================
 
-In this repo, we are collecting examples of XML markup from participating publishers, as well as minimal examples. The purpose of the collection is to identify best practices.
+This repository serves as the central hub for the JATS4R group activities.
 
------
+All of the information that you seek can be found on
+[the wiki](https://github.com/JATS4R/JATS4R-Participant-Hub/wiki).
 
-[XML JATS 
-*elements*](http://jats.nlm.nih.gov/publishing/tag-library/1.1d3/element/pub-elem-sec-intro.html) are logical [document 
-components](https://en.wikipedia.org/wiki/XML_Information_Set) that are referred to by 
-their tag names. 
 
-This repo contains XML examples collected from different publishers as well as minimal 
-examples for using thematically related groups of JATS elements (e.g. for permissions, 
-maths, or figures) and serves to elaborate best practices around using these elements.
 
-For more details see the [jats4r.org](http://jats4r.org) or the article,
-[Improving the reusability of JATS](http://www.ncbi.nlm.nih.gov/books/NBK279901/).