Update opt-out-api-quickstart.md

Author: dbasantes

articles/communication-services/quickstarts/sms/opt-out-api-quickstart.md

@@ -115,15 +115,15 @@ In general, response contents are the same for all actions and contain the succe
 ## Sample code
 
 ::: zone pivot="programming-language-csharp"
-[!INCLUDE [Send SMS with .NET SDK](./includes/sms-opt-out-api-csharp.md)]
+[!INCLUDE [Use Opt-out API with .NET SDK](./includes/sms-opt-out-api-csharp.md)]
 ::: zone-end
 
 ::: zone pivot="programming-language-javascript"
-[!INCLUDE [Send SMS with JavaScript SDK](./includes/sms-opt-out-api-javascript.md)]
+[!INCLUDE [Use Opt-out API with JavaScript SDK](./includes/sms-opt-out-api-javascript.md)]
 ::: zone-end
 
 ::: zone pivot="programming-language-java"
-[!INCLUDE [Send SMS with Java SDK](./includes/sms-opt-out-api-java.md)]
+[!INCLUDE [Use Opt-out API with Java SDK](./includes/sms-opt-out-api-java.md)]
 ::: zone-end