Update sample-data.md

Author: pmusa

docs/use-cases/observability/clickstack/example-datasets/sample-data.md

@@ -100,7 +100,7 @@ for filename in $(tar -tf sample.tar.gz); do
 done
 ```
 
-This simulates OLTP log, trace, and metric sources sending data to the OTel collector. In production, these sources may be language clients or even other OTel collectors.
+This simulates OTLP log, trace, and metric sources sending data to the OTel collector. In production, these sources may be language clients or even other OTel collectors.
 
 Returning to the `Search` view, you should see that data has started to load (adjust the time frame to the `Last 1 hour` if the data does not render):