Added newest edits.

README.md

@@ -4,6 +4,8 @@ A bash script working as a helthcheck for a VM.
 
 Takes in a single argument in form of VMID.
 
+`./watchdog.sh <REPLACE_WITH_VMID>` 
+
 ## Requirements
 Copy/clone code into your directory 
 
@@ -11,9 +13,33 @@ Add exec permission on watchdog.sh
 
 `chmod u+x /path/to/watchdog.sh`
 
-## Examples
+## What's bck_watchdog
+It's for a pretty specific usecase when you have HA opnsense running in 2 vm's. 
 
-`./watchdog.sh <REPLACE_WITH_VMID>` 
+If both VM's go down then this would start a third "emergency" VM running OPNSense.
+
+## Examples
 
 `./watchdog.sh 100` 
 
+### Crontab
+
+` 
+*/5 * * * * /bin/bash /path/to/watchdog.sh 100
+` 
+
+This will check every 5 minutes if a VM us runninig.
+
+### Crontab with bck_watchdog
+
+```
+*/5 * * * * /bin/bash /path/to/watchdog.sh 100
+
+*/2 * * * * /bin/bash /path/to/watchdog.sh 1003
+
+*/2 * * * * /bin/bash /path/to/watchdog.sh 1004
+```
+
+This will check the HA 2 nodes every 2 minutes and backup one every 5 minutes.
+
+where 1003 and 1004 are main HA nodes and 100 is the backup.