PROD-35900 Conditional deployment of the empty node

Change-Id: If8dec13efbb862d14f6d8ff0108ee18b9795234e
diff --git a/jobs/pipelines/deploy-cicd-and-run-tests.groovy b/jobs/pipelines/deploy-cicd-and-run-tests.groovy
index 07684cf..1e35c9e 100644
--- a/jobs/pipelines/deploy-cicd-and-run-tests.groovy
+++ b/jobs/pipelines/deploy-cicd-and-run-tests.groovy
@@ -1,3 +1,7 @@
+/*
+*   DEPLOY_EMPTY_NODE             Add extra node to heat stack. Node without a role and with salt-minion
+*/
+
 @Library('tcp-qa')_
 
 def common = new com.mirantis.mk.Common()