Update e_tipp.md

1 job for master in 35 seconds (queued for 2 seconds)
latest
Status Job ID Name Coverage
  Build
failed #624202
build

00:00:35

 
Name Stage Failure
failed
build Build

Enter file name:
! Emergency stop.
<read *>

l.12 \usepackage

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