Fix author in latest blog post (#10827)

Fix this so that @nhunzaker gets his name up there for real (will want to cherry-pick back to master but the blog post isn't there either so I'll let y'all handle that)

docs/_data/authors.yml

@@ -49,6 +49,9 @@ LoukaN:
 matthewjohnston4:
   name: Matthew Johnston
   url: https://github.com/matthewathome
+nhunzaker:
+  name: Nathan Hunzaker
+  url: https://github.com/nhunzaker
 petehunt:
   name: Pete Hunt
   url: https://twitter.com/floydophone