Update number-lookup.md

Add missing zone-end

Author: ericasp16

articles/communication-services/quickstarts/telephony/number-lookup.md

@@ -30,6 +30,7 @@ zone_pivot_groups: acs-js-csharp-java-python
 
 ::: zone pivot="programming-language-python"
 [!INCLUDE [Python](./includes/number-lookup-python.md)]
+::: zone-end
 
 ## Troubleshooting
 
@@ -47,4 +48,4 @@ In this quickstart you learned how to:
 > [Number Lookup Concept](../../concepts/numbers/number-lookup-concept.md)
 
 > [!div class="nextstepaction"]
-> [Number Lookup SDK](../../concepts/numbers/number-lookup-sdk.md)
+> [Number Lookup SDK](../../concepts/numbers/number-lookup-sdk.md)