Update Customizing-Application-Modules-Guide.md

docs/en/Customizing-Application-Modules-Guide.md

@@ -1,6 +1,6 @@
 # Customizing the Existing Modules
 
-ABP Framework provides was designed to support to build fully [modular applications](Module-Development-Basics.md) and systems. It also provides some [pre-built application modules](Modules/Index.md) those are **ready to use** in any kind of application.
+ABP Framework has been designed to support to build fully [modular applications](Module-Development-Basics.md) and systems. It also provides some [pre-built application modules](Modules/Index.md) those are **ready to use** in any kind of application.
 
 For example, you can **re-use** the [Identity Management Module](Modules/Identity.md) to add user, role and permission management to your application. The [application startup template](Startup-Templates/Application.md) already comes with Identity and some other modules **pre-installed**.
 
@@ -59,4 +59,4 @@ Also, see the following documents:
 
 * See [the localization document](Localization.md) to learn how to extend existing localization resources.
 * See [the settings document](Settings.md) to learn how to change setting definitions of a depended module.
-* See [the authorization document](Authorization.md) to learn how to change permission definitions of a depended module.
+* See [the authorization document](Authorization.md) to learn how to change permission definitions of a depended module.