modify readme

README.md

 ## Supplemental information for "Data visualization heuristics for the physical sciences"
-Chad M. Parish and Philip D. Edmondson <br>
+Chad M. Parish* and Philip D. Edmondson <br>
 Fundamentals of Radiation Effect Group <br>
 Materials Science and Tecnhology Division <br>
 Oak Ridge National Laboratory <br>
  <br>
-Paper submitted to Materials and Design <br>
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+Paper submitted to Materials and Design <br>
+`* parishcm@ornl.gov`
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