Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -4,9 +4,10 @@ image: debian:stable
 before_script: []
 pages:
   script:
-    - apt install pandoc
+    - apt-get update
+    - apt-get install -y pandoc
     - mkdir public
-    - pandoc -s --toc -c style.css README.md -o public/index.html
+    - pandoc -s -r gfm -w html5 -o public/index.html -c style.css --toc -M lang=en -M title=fwlnx --verbose README.md
   artifacts:
     paths:
       # The folder that contains the files to be exposed at the Page URL