fix echo and push latest tag

.gitlab-ci.yml

@@ -52,8 +52,9 @@ docker:build:
     - docker login -u gitlab-ci-token -p $CI_BUILD_TOKEN $CI_REGISTRY
     - echo "Building Dockerfile..."
     - docker build --pull -t ${CI_APPLICATION_REPOSITORY}:${CI_APPLICATION_TAG} -t ${CI_APPLICATION_REPOSITORY}:latest .
-    - echo "Pushing to GitLab Container registry $CI_APPLICATION_REPOSITORY with tags `${CI_APPLICATION_TAG}` and `latest`"
+    - echo "Pushing to GitLab Container registry $CI_APPLICATION_REPOSITORY with tags '${CI_APPLICATION_TAG}' and 'latest'"
     - docker push ${CI_APPLICATION_REPOSITORY}:${CI_APPLICATION_TAG}
+    - docker push ${CI_APPLICATION_REPOSITORY}:latest
   only:
     - master
     - stable
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