fixed gitlab-ci (combine)

.gitlab-ci.yml

@@ -69,7 +69,7 @@ build-pdf:
 combine:
   stage: combine
   script:
-  - if [[ -e build ]] ; then cp -purv /builds/oppl/website-digkom/content/courses/* public/ ; rm -rf build ; fi
+  - if [[ -e /builds/oppl/website-digkom/content/courses ]] ; then cp -purv /builds/oppl/website-digkom/content/courses/* public/ ; rm -rf build ; fi
   artifacts:
     paths:
     - public