Update authors.yml

Part of #6

Author: schell

blog/authors.yml

@@ -17,3 +17,14 @@ eddyb:
     /img/authors/eddyb.png
   socials:
     github: eddyb
+
+schell:
+  name: Schell Carl Scivally
+  title: Rust GPU and Renderling maintainer
+  url: https://github.com/schell
+  image_url:
+    ## Image URL managed by the fetchAuthorImages plugin. Changes may be overwritten.
+    https://avatars.githubusercontent.com/u/24942
+  socials:
+    github: schell
+    instagram: schellsan