Revert "Update AUTHORS.md"; the file was removed with new website

This reverts commit d9bce3a3.
4 jobs for sp-new in 1 minute and 17 seconds (queued for 7 seconds)
Status Job ID Name Coverage
  Test1
passed rendering #1415817

00:00:31

passed transcripts #1415818

00:01:05

 
  Test2
passed status #1415819

00:00:11

 
  Generate
manual all-transcripts #1415820
allowed to fail manual