Add support for including staff presentations with links to PDFs

[clyne]

Thomas has requested that we include presentations given by VAST staff in addition to the publications that we currently list. Each entry should include: presenter, title, venue, location, and a link to a PDF file containing the talk. See the DART site, for example.

As long as the PDF files are in some quasi-permanent location, we can probably just link to them (as opposed as hosting them in the GitHub repo itself). Supporting both options would probably be prudent.

[clyne]

@jukent please let me know if you have any questions about this. No great rush... We've promised Thomas something after AMS. Thanks.

[jukent]

This sounds like a great project for me to tackle in the quiet weeks between AGU and AMS (and then update again after AMS).

Do you have any ideas of where we should host the PDFs (posters and slides)? I guess it doesn't have to be standardized.

[clyne]

How about the option of either hosting them on GitHub, or any external site with a URL (e.g. zenodo)?