Adding a wic theme

[olayabucaro]

To contribute to this repo, please make sure to:

• Sign the CLA (contributor license agreement). The CLA assistant will remind you below if you have not signed the agreement before.
• Add a news item to NEWS.md and your name to DESCRIPTION (by alphabetical order) unless you have already been listed there.
• Provide a URL to a live example (and even better, a couple of screenshots) if you are contributing a new theme.

Thank you!

Summary

Hi!
I'm contributing with a theme that was developed by some colleagues at the Wittgenstein Centre (WIC) in accordance with the WIC identity guidelines.

Demo

Live demo

WIC slides example

Screenshots

[yihui]

Thank you!