Merge branch 'docs-add-backticks-to-master-branch' into 'master'

Docs: add backticks around "master" in "master branch"

See merge request gitlab-org/gitlab!41472

doc/user/project/pages/getting_started/pages_from_scratch.md

@@ -190,7 +190,7 @@ pages:
       - public
 ```
 
-Then configure the pipeline to run the job for the master branch only.
+Then configure the pipeline to run the job for the `master` branch only.
 
 ```yaml
 image: ruby:2.7