Change description of each JJB job PROD-36517

Change-Id: Ia3765af9dc6b1c37b8ffe94ad5498cea1d975ada
diff --git a/jobs/global.yaml b/jobs/global.yaml
index 62adb50..47576b0 100644
--- a/jobs/global.yaml
+++ b/jobs/global.yaml
@@ -4,6 +4,12 @@
       Do not edit this job through the web ! <br>
       Please use jenkins-job-builder in git <br>
       git clone ssh://gerrit.mcp.mirantis.com:29418/mcp/tcp-qa
+
+      <h1><font color='red'>
+      <!--- INSERT ALERT HERE vvvvvvv --->
+
+      <!--- INSERT ALERT HERE ^^^^^^^ --->
+      </font></h1>
     current-version: 2019.2.16
     previous-version: 2019.2.15
     disabled-proposed: false