Document 08.2017 arxlmiv dataset release

Here is the first stab of the page I made, with some fields yet to be filled in (e.g. license, citation bibtex, 2 of the dataset info rows).

Feedback welcome!

I guess gitlab calls these "merge requests", will try to remember.

_posts/2018-01-08-dataset.md

+---
+layout: post
+title: First Data Set (1.1 Million scientific HTML5 documents from arXiv)
+---
+SIGMathLing has published a first data set, which also acts as a template for future data
+sets. The content of this data set is licensed to [SIGMathLing members](/member/) for research
+and tool development purposes subject to the [SIGMathLing Non-Disclosure-Agreement](/nda/).
+
+This collection of 1.1 Million HTML5 documents
+has been developed as part of the [arXMLiv](https://kwarc.info/systems/arXMLiv/) project at
+the [KWARC](https://kwarc.info/) research group.  It was created by converting the
+[arXiv collection of scientific preprints until August 2017](http://arxiv.org) via
+[LaTeXML](https://github.com/brucemiller/LaTeXML) using the
+[CorTeX corpus management system](https://github.com/dginev/CorTeX).
+
+Details can be found on the [SIGMathLing Resource page](/resources/arxmliv/).
+
+