OSDOCS-15460: CQA install vSphere config parameters

Author: ShaunaDiaz

installing/installing_vsphere/installation-config-parameters-vsphere.adoc

@@ -7,6 +7,6 @@ include::_attributes/common-attributes.adoc[]
 
 toc::[]
 
-Before you deploy an {product-title} cluster on vSphere, you provide parameters to customize your cluster and the platform that hosts it. When you create the `install-config.yaml` file, you provide values for the required parameters through the command line. You can then modify the `install-config.yaml` file to customize your cluster further.
+Before you deploy an {product-title} cluster on vSphere, you can configure parameters to customize your cluster and the platform that hosts it. The installation program uses the information in the `install-config.yaml` file to provision required infrastructure and deploy cluster components. When you create the `install-config.yaml` file, you can configure the values for your required parameters through the command line. Edit the `install-config.yaml` file to customize your cluster further before installation begins.
 
 include::modules/installation-configuration-parameters.adoc[leveloffset=+1]