Update README.md

Author: arfon

README.md

@@ -21,7 +21,7 @@ Open source is bigger than any company or community. The dataset is released und
 This survey is primarily designed and implemented by GitHub:
 
 - [@franniez](https://github.com/franniez) -  Data and social scientist at GitHub. New to open source but not to studying people or movements, she's done extensive survey research in Washington D.C, from inside the ivory tower, and within the technology sector. 
-- [@arfon](https://github.com/arfon) - Program Manager for Open Source Data at GitHub. A lapsed academic with a passion for new models of scientific collaboration, he's used big telescopes to [study dust in space](http://www.arfon.org/thesis), built sequencing pipelines in [Cambridge](http://www.sanger.ac.uk/) and have engaged millions of people in online citizen science by co-founding the [Zooniverse](http://zooniverse.org).
+- [@arfon](https://github.com/arfon) - Program Manager for Open Source Data at GitHub. A lapsed academic with a passion for new models of scientific collaboration, he's used big telescopes to study dust in space, built sequencing technologies in [Cambridge](http://www.sanger.ac.uk/), and has engaged millions of people in online citizen science by co-founding the [Zooniverse](http://zooniverse.org).
 - [@mlinksva](https://github.com/mlinksva) - Open Source Maven at GitHub. A lapsed engineer and non-lawyer with a passion for increasing the efficacy and scope of open production and policy, he is an advisor/director/volunteer for various open initiatives and was previously a manager and technologist at Creative Commons.
 
 This isn't a solo effort for us, these awesome individuals and organizations have helped us design this survey: