Clarify what kind of job

Author: nbarrientos

README.md

@@ -332,10 +332,11 @@ repositories containing Puppet code must have at least two branches: `master`
 and `qa`, meaning that they will always be expanded by Jens. This behaviour can
 be configured by the `mandatorybranches` configuration key.
 
-As environment definitions are just Yaml files, the files can be easily
-protected from unauthorised/accidental modification via, for instance, Gitolite
-rules. Another option is to receive changes via merge requests that will be
-validated by an external job under the administrator's control.
+As environment definitions are just Yaml files, the files can be
+easily protected from unauthorised/accidental modification via, for
+instance, Gitolite rules. Another option is to receive changes via
+merge requests that will be validated by an external continuous
+integration job under the administrator's control.
 
 ### How does an environment look like on disk?