add track_script option
diff --git a/README.rst b/README.rst
index 9ae28f3..e984b98 100644
--- a/README.rst
+++ b/README.rst
@@ -95,6 +95,40 @@
- 192.168.10.2
interface: eth0
+Track/vrrp scripts for keepalived instance:
+
+.. code-block:: yaml
+
+ keepalived:
+ cluster:
+ enabled: True
+ instance:
+ VIP2:
+ priority: 100
+ virtual_router_id: 10
+ password: pass
+ addresses:
+ - 192.168.11.1
+ - 192.168.11.2
+ interface: eth0
+ track_script: haproxy_check
+ VIP3:
+ priority: 100
+ virtual_router_id: 11
+ password: pass
+ addresses:
+ - 192.168.10.1
+ - 192.168.10.2
+ interface: eth0
+ track_script: random_check
+ vrrp_scripts:
+ random_check:
+ interval: 10
+ content: |
+ #!/bin/bash
+ exit $(($RANDOM%2))
+
+
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