Issue #27 Add info about the pull request job

README.adoc

@@ -64,7 +64,9 @@ For more information about enabling, disabling, and applying add-ons, see the li
 == CI Setup
 
 `minishift-addons` uses link:https://ci.centos.org/[CentOS CI] as CI build server.
-link:https://ci.centos.org/job/minishift-addons-nightly-b2d/[Nightly job] runs daily at midnight.
+A link:https://ci.centos.org/job/minishift-addons-pr/[pull request build job] will be triggered for every pull request.
+However, the build job runs the integration tests only when the pull request contains any change related to add-on.
+Also, a link:https://ci.centos.org/job/minishift-addons-nightly-b2d/[nightly job] runs daily at midnight.
 It execute all available add-on link:https://github.com/minishift/minishift-addons/tree/master/test/integration/features[integration tests] against the _master_ branch of the `minishift-addons` GitHub repository with link:https://github.com/minishift/minishift-b2d-iso[b2d ISO].
 
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