add ci pipeline

.gitlab-ci.yml

@@ -0,0 +1,13 @@
+image: registry.gitlab.com/islandoftex/images/texlive:latest
+
+build:
+  script:
+    - cd src
+    - pdflatex main.tex
+    - bibtex sources
+    - pdflatex main.tex
+  after_script:
+    - cat latex/Ausarbeitung.log
+  artifacts:
+    paths:
+      - latex/main.pdf