Change markdownlint wildcard format

.gitlab/ci/docs.gitlab-ci.yml

@@ -74,7 +74,7 @@ docs lint:
   script:
     - scripts/lint-doc.sh
     # Lint Markdown
-    - markdownlint --config .markdownlint.json doc/**/*.md
+    - markdownlint --config .markdownlint.json 'doc/**/*.md'
     # Prepare docs for build
     - mv doc/ /tmp/gitlab-docs/content/$DOCS_GITLAB_REPO_SUFFIX
     - cd /tmp/gitlab-docs

doc/ci/docker/using_docker_build.md

@@ -603,7 +603,7 @@ Below is an example of how your `.gitlab-ci.yml` should look like, assuming you
      - docker run my-docker-image /script/to/run/tests
 ```
 
-If you forget to set the service alias the `docker:19.03.1` image won't find the 
+If you forget to set the service alias the `docker:19.03.1` image won't find the
 `dind` service, and an error like the following is thrown:
 
 ```sh

doc/user/gitlab_com/index.md

@@ -334,7 +334,7 @@ No response headers are provided.
 GitLab.com:
 
 - Has [rate limits on raw endpoints](../../user/admin_area/settings/rate_limits_on_raw_endpoints.md)
-  set to the default. 
+  set to the default.
 - Does not have the user and IP rate limits settings enabled.
 
 ## GitLab.com at scale