fix image extension

Author: sorochak

_ext/team.yaml

@@ -522,7 +522,7 @@ team:
   - name: Jordan Watson
     title: Director, CIOOS Pacific
     affiliate: CIOOS Pacific, Ocean Networks Canada
-    image_url: /assets/images/people/jordanwatson.jpg
+    image_url: /assets/images/people/jordanwatson.png
     # github_user: # TODO
     email: jordanwatson@oceannetworks.ca 
     roles: