update docs with new names

smtp/README.md

@@ -6,7 +6,7 @@ Depends on [klite-i18n](../i18n) for translations.
 
 To use it, initialize the correct implementation when creating the Server instance:
 ```kotlin
-register(if (Config.isDev) FakeEmailService::class else RealEmailService::class)
+register(if (Config.isDev) FakeEmailSender::class else SmtpEmailSender::class)
 ```
 
 Add approprate content to your translation files, e.g. `en.json`:
@@ -24,7 +24,7 @@ Add approprate content to your translation files, e.g. `en.json`:
 
 Then you can send emails like this:
 ```kotlin
-emailService.send(Email("[email protected]"), EmailContent("en", "welcome", mapOf("name" to "John"), URI("https://github.com/login")))
+emailSender.send(Email("[email protected]"), EmailContent("en", "welcome", mapOf("name" to "John"), URI("https://github.com/login")))
 ```
 
 You can redefine HTML email template by extending `EmailContent` class.