Fix README.md to align with other renaming

examples/telegraf/README.md

@@ -21,7 +21,7 @@
 
 > **On Verbosity:** These scripts are meant as templates for users who are new to writing tickscripts. All of the examples here can be written as one large stream. See the [documentation](https://docs.influxdata.com/kapacitor/v0.13/) for examples and full tick syntax.
   
-### Batch script template
+### Batch script example
 
 ```javascript
 // {alert_name}
@@ -52,8 +52,6 @@ var data = batch
     .period(period)
     .every(every)
     .groupBy('host')
-  |mean({alert_metric})
-    .as("stat")
 
 // Thresholds
 var alert = data
@@ -73,7 +71,7 @@ alert
 
 ```
 
-### Stream script template
+### Stream script example
 
 ```javascript
 // {alert_name}