Merge branch '10-use-rules-instead-of-only-in-gitlab-ci-script' into 'develop'

feat: use rules instead of only syntax in ci

See merge request R3/howto-cards!85

.gitlab-ci.yml

@@ -11,9 +11,9 @@ before_script:
 
 pages:
   stage: deploy
-  only:
-    - develop
-    - master
+  rules:
+    - if: $CI_COMMIT_BRANCH == "master"
+    - if: $CI_COMMIT_BRANCH == "develop"
   script:
     - bash .ci/deploy.sh