Update normalization-develop-parsers.md

Author: oshezaf

articles/sentinel/normalization-develop-parsers.md

@@ -238,7 +238,7 @@ To deploy a large number of parsers, we recommend using parser ARM templates, as
 
 1. Use the [ASIM Yaml to ARM template converter](https://aka.ms/ASimYaml2ARM) to convert your YAML file to an ARM template. 
 
-1. Delete older versions of the functions, if deploying an update using the portal or the [function delete tool](https://aka.ms/ASimDelFunctionScript). 
+1. If deploying an update, delete older versions of the functions using the portal or the [function delete PowerShell tool](https://aka.ms/ASimDelFunctionScript). 
 
 1. Deploy your template using the [Azure portal](../azure-resource-manager/templates/quickstart-create-templates-use-the-portal.md#edit-and-deploy-the-template) or [PowerShell](../azure-resource-manager/templates/deploy-powershell.md).