Update .gitlab-ci.yml

.gitlab-ci.yml

@@ -1,8 +1,11 @@
-stages:
-- test
+before_script:
+  - apt-get update -qq && apt-get install -y -qq texlive
+  - pdflatex -version
+  - which pdflatex
 
-run-test:
-stage: test
-script:
-- touch foo
-- test foo
+build:
+  script:
+    - latexmk -pdf article.tex
+  artifacts:
+    paths:
+      - article.pdf