Update references.md

1 job for master in 43 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
failed #527055
build

00:00:43

 
Name Stage Failure
failed
build Build
$ ./build.sh
Error producing PDF.
! Argument of \str_uppercase:n has an extra }.
<inserted text>
\par
l.175 \setmainlanguage[]{}

Cleaning up project directory and file based variables
ERROR: Job failed: exit code 123