capitalize check is mandatory as of now

.gitlab-ci.yml

@@ -22,7 +22,7 @@ two spaces:
 capitalize:
   stage: test
   image: davidhrbac/docker-mkdocscheck:latest
-  allow_failure: true
+  # allow_failure: true
   script:
   - find mkdocs.yml docs.it4i/ \( -name '*.md' -o -name '*.yml' \) -print0 | xargs -0 -n1 scripts/titlemd_test.py