merge

Author: iaoiui

README.md

@@ -118,13 +118,9 @@ deployment.apps/nginx2 created
 
 The alert can be found in your MS Teams like below.
 
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 ![](./assets/teams_alert.PNG)
 
 # Options
 
 if you set TEAMS_HEARTBEAT_ENDPOINT variable, succesful notification can be notified every observation period like below.
 ![](./assets/heartbeat.png)
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-![teams_alert](./teams_alert.png)
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