ChestX-ray dataset reference formatting (#669) closes #666

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ChestX-ray dataset reference formatting (#669) closes #666

* add ChestX-ray data link

* fix the link in reference

Author: Yifan

README.md

@@ -15,4 +15,4 @@ This directory contains the following files, which are mostly ignored on the `ma
 ## Source
 
 The manuscripts in this directory were built from
-[`2e721e0c9ee8314688581e0e4dd465222d867b01`](https://github.com/greenelab/deep-review/commit/2e721e0c9ee8314688581e0e4dd465222d867b01).
+[`d4c316393779a9248d924abae83bc672aafa39df`](https://github.com/greenelab/deep-review/commit/d4c316393779a9248d924abae83bc672aafa39df).

README.md.ots

@@ -523,7 +523,7 @@ <h2 id="references" class="unnumbered">References</h2>
 <p>72. Lever J, Krzywinski M, Altman N. 2016 Points of Significance: Classification evaluation. <em>Nat Meth</em> <strong>13</strong>, 603–604. See <a href="https://doi.org/10.1038/nmeth.3945" class="uri">https://doi.org/10.1038/nmeth.3945</a>.</p>
 </div>
 <div id="ref-odFR7ptt">
-<p>73. In press. CXR8 | Powered By Box. See <a href="https://nihcc.app.box.com/v/ChestXray-NIHCC" class="uri">https://nihcc.app.box.com/v/ChestXray-NIHCC</a>.</p>
+<p>73. NIH Clinical Center. 2017 NIH Chest X-ray Dataset. See <a href="https://nihcc.app.box.com/v/ChestXray-NIHCC" class="uri">https://nihcc.app.box.com/v/ChestXray-NIHCC</a>.</p>
 </div>
 <div id="ref-uDaRUyh9">
 <p>74. Ohno-Machado L. 2011 Realizing the full potential of electronic health records: the role of natural language processing. <em>J Am Med Inform Assoc</em> <strong>18</strong>, 539–539. See <a href="https://doi.org/10.1136/amiajnl-2011-000501" class="uri">https://doi.org/10.1136/amiajnl-2011-000501</a>.</p>