Merge pull request #3228 from cshallue/master

Add astronet directory and a temporary README.md

research/astronet/README.md

+# Coming Soon!
+
+This directory will soon be populated with TensorFlow models and data
+processing code for identifying exoplanets in astrophysical light curves.
+
+For full details, see the following paper:
+
+*Identifying Exoplanets With Deep Learning: A Five Planet Resonant Chain Around
+Kepler-80 And An Eighth Planet Around Kepler-90*
+
+Christopher J Shallue and Andrew Vanderburg
+
+To appear in the Astronomical Journal
+
+Preprint available at https://www.cfa.harvard.edu/~avanderb/kepler90i.pdf
+
+Contact: Chris Shallue (@cshallue)