Nit patch on Blazor server guidance (#17610)

Author: guardrex

aspnetcore/security/blazor/webassembly/hosted-with-azure-active-directory-b2c.md

@@ -120,7 +120,7 @@ The support for authenticating and authorizing calls to ASP.NET Core Web APIs is
 
 ### Authentication service support
 
-The `AddAuthentication` method sets up authentication services within the app and configures the JWT Bearer handler as the default authentication method. The `AddAzureADBearer` method sets up the specific parameters in the JWT Bearer handler required to validate tokens emitted by the Azure Active Directory B2C:
+The `AddAuthentication` method sets up authentication services within the app and configures the JWT Bearer handler as the default authentication method. The `AddAzureADB2CBearer` method sets up the specific parameters in the JWT Bearer handler required to validate tokens emitted by the Azure Active Directory B2C:
 
 ```csharp
 services.AddAuthentication(AzureADB2CDefaults.BearerAuthenticationScheme)