abstract not showing up

[lheagy]

There are a couple of repos where the abstract isn't showing up, and I am not sure why (it seems to be with the Computers and Geosciences template)

• https://github.com/ubcgif/2015-cockett-etal-computers-and-geosciences-simpeg
• https://github.com/ubcgif/2017-heagy-etal-computers-geosciences-framwework-electromagnetics

Any pointers would be appreciated!