[JIRA] (OVIRT-306) [Infra docs] add howto on adding yaml patch to ci

[Infra docs] add howto on adding yaml patch to ci ------------------------------------------------- Key: OVIRT-306 URL: https://ovirt-jira.atlassian.net/browse/OVIRT-306 Project: oVirt - virtualization made easy Issue Type: Task Components: General Affects Versions: Test Reporter: eyal edri [Administrator] Assignee: snaftaly Priority: Highest we need a wiki explaining how to add a new job in jenkins via jjb. it should be easy to anyone not familiar with jjb. should contain guidelines on naming conventions and code in the job as well.