Merge pull request #1 from dirkcuys/gh-pages

Signing up for the curse!

_data/course.yml

@@ -3,3 +3,6 @@ signups:
  - name: The great unknown
    image: https://pbs.twimg.com/profile_images/1728864434/p2pu-twitter-square_400x400.png
    twitter: p2pu
+ - name: Dirk
+   image: https://pbs.twimg.com/profile_images/1789721843/7OGyxdxm_400x400
+   twitter: riskycud