Remove too-long created_by: value

2021-12-06 11:00:03 -05:00 · 2021-12-06 11:00:03 -05:00 · 3c712548e0
--- a/topics/mdx/index.md
+++ b/topics/mdx/index.md
@ -1,6 +1,5 @@
 ---
 aliases: mdx-js
-created_by: John Otander, Guillermo Rauch, James K. Nelson, Tim Neutkens, Brent Jackson, Jessica Stokes, and more.
 display_name: MDX
 github_url: https://github.com/mdx-js/mdx/
 logo: mdx.png