Clarify the examples of CI job artifact URLs

Use the same branch name in all examples, and don't use the same word
for the job name and the directory the artifact is in.

doc/ci/pipelines/job_artifacts.md

@@ -140,10 +140,10 @@ namespace:
 https://gitlab.com/gitlab-org/gitlab/-/jobs/artifacts/main/download?job=coverage
 ```
 
-To download the file `coverage/index.html` from the same artifacts:
+To download the file `review/index.html` from the same artifacts:
 
 ```plaintext
-https://gitlab.com/gitlab-org/gitlab/-/jobs/artifacts/master/raw/coverage/index.html?job=coverage
+https://gitlab.com/gitlab-org/gitlab/-/jobs/artifacts/main/raw/review/index.html?job=coverage
 ```
 
 To browse the latest job artifacts:
@@ -155,7 +155,7 @@ https://example.com/<namespace>/<project>/-/jobs/artifacts/<ref>/browse?job=<job
 For example:
 
 ```plaintext
-https://gitlab.com/gitlab-org/gitlab/-/jobs/artifacts/master/browse?job=coverage
+https://gitlab.com/gitlab-org/gitlab/-/jobs/artifacts/main/browse?job=coverage
 ```
 
 To download specific files, including HTML files that
@@ -168,7 +168,7 @@ https://example.com/<namespace>/<project>/-/jobs/artifacts/<ref>/file/<path>?job
 For example, when a job `coverage` creates the artifact `htmlcov/index.html`:
 
 ```plaintext
-https://gitlab.com/gitlab-org/gitlab/-/jobs/artifacts/master/file/htmlcov/index.html?job=coverage
+https://gitlab.com/gitlab-org/gitlab/-/jobs/artifacts/main/file/htmlcov/index.html?job=coverage
 ```
 
 ## When job artifacts are deleted