Add link to Kellie Ottoboni's website

Call-for-participation.md

@@ -36,7 +36,7 @@ If you have any questions, feel free to contact anyone of the organizing committ
 [Hilmar Lapp], Duke University<br/>
 [François Michonneau], University of Florida<br/>
 Jasmine Nirody, UC Berkeley<br/>
-Kellie Ottoboni, UC Berkeley<br/>
+[Kellie Ottoboni], UC Berkeley<br/>
 Tracy Teal, Data Carpentry<br/>
 Jamie Whitacre, Project Jupyter, UC Berkeley Institute for Data Science<br/>
 
@@ -47,3 +47,4 @@ Jamie Whitacre, Project Jupyter, UC Berkeley Institute for Data Science<br/>
 [Jupyter Notebook]: http://jupyter.org
 [Hilmar Lapp]: http://orcid.org/0000-0001-9107-0714
 [François Michonneau]: mailto:francois.michonneau@gmail.com
+[Kellie Ottoboni]: http://www.stat.berkeley.edu/~kellieotto/