fix i18n-embed version in readme and fix incorrect comment in i18n-embed code example.

- fixes #18
- fixes #19

Author: kellpossible

README.md

@@ -83,7 +83,7 @@ Now that you have compiled your translations, you can embed them within your app
 Add the following to your `Cargo.toml` dependencies:
 
 ```toml
-i18n-embed = "0.3.1"
+i18n-embed = "0.4"
 ```
 
 A minimal example for how to embed the compiled translations into your application could be:

i18n-embed/src/lib.rs

@@ -150,8 +150,7 @@
 //!     static ref LANGUAGE_LOADER: MyLanguageLoader = MyLanguageLoader::new();
 //! }
 //!
-//! /// Localize this library, and select the language using the provided
-//! /// [LanguageRequester](LanguageRequester).
+//! // Get the `Localizer` to be used for localizing this library.
 //! #[cfg(feature = "localize")]
 //! pub fn localizer() -> Box<dyn Localizer<'static>> {
 //!     Box::from(DefaultLocalizer::new(
@@ -194,6 +193,8 @@
 //!     static ref LANGUAGE_LOADER: MyLanguageLoader = MyLanguageLoader::new();
 //! }
 //!
+//! // Get the `Localizer` to be used for localizing this library,
+//! // using the provided embeddes source of language files `embed`.
 //! pub fn localizer(embed: &'static dyn I18nEmbedDyn) -> Box<dyn Localizer<'static>> {
 //!     Box::from(DefaultLocalizer::new(
 //!         &*LANGUAGE_LOADER,