The Artsy Engineering author link 404s because the link points to /author/artsy_engineering and the author page is generated with a slug of /author/artsy-engineering. This takes the seemingly easier approach of updating the author key in the _config file rather than changing how links or pages are generated.
The Artsy Engineering author link 404s because the link points to
/author/artsy_engineeringand the author page is generated with a slug of/author/artsy-engineering. This takes the seemingly easier approach of updating the author key in the_configfile rather than changing how links or pages are generated.