Updated contact info

README.md

@@ -23,6 +23,6 @@ Files
 Questions
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-Implementation of the Digital Strategy at NASA is coordinated by the NASA's Open Government Team, located in the Office of the Chief Information Officer. For general information, contact [Nick Skytland](mailto:nicholas.g.skytland@nasa.gov).  To get involved, contact [Ali Llewellyn](alicia.llewellyn-1@nasa.gov).  Questions about the website, APIs, data or code can be directed to [Sean Herron](sean.herron@nasa.gov).
+Implementation of the Digital Strategy at NASA is coordinated by the NASA's Open Government Team, located in the Office of the Chief Information Officer. For general information, contact Nick Skytland (nicholas.g.skytland@nasa.gov).  To get involved, contact Ali Llewellyn (alicia.llewellyn-1@nasa.gov).  Questions about the website, APIs, data or code can be directed to [Sean Herron](http://github.com/seanherron) (sean.herron@nasa.gov).