removed :

.gitlab-ci.yml

@@ -21,6 +21,6 @@ step-deploy-prod:
     - sudo docker-compose -f "docker-compose-test.yml" up -d --build
     - sudo docker build -t gitlab.jonasled.de/jonasled/url_shorter_docker .
     - sudo docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
-    - echo "docker push username: $CI_REGISTRY_USER"
+    - echo 'docker push username $CI_REGISTRY_USER'
     - sudo docker push gitlab.jonasled.de/jonasled/url_shorter_docker
   environment: master 
\ No newline at end of file