Add image: 2020-10-fellows-thumb

Author: christymelucci

content/about/news/headless/2020_10_fellows.md

@@ -2,7 +2,7 @@
 date: 2020-10-01
 title: Google Fellows Join Delphi for 6 Months
 category: update
-image: placeholder-thumb.jpg
+image: 2020-10-fellows-thumb/jpg
 ---
 
 We've welcomed [14 Google Fellows](https://www.cmu.edu/news/stories/archives/2020/september/covidcast-google.html) to Delphi and are excited to have them on board!