message: docs: update i18n doc regarding aot compilation
  Add missing lines to code example to allow using ng serve with custom i18n configurations.
  PR Close
diff: @@ -683,6 +683,8 @@ You also need to instruct the AOT compiler to use your translation configuration
  * `i18nLocale`: the locale id.
  ```
  +"build": {
  + ...
  "configurations": {
  ...
  "fr": {
  @@ -694,6 +696,16 @@ You also need to instruct the AOT compiler to use your translation configuration
  ...
  }
  }
  +},
  +"serve": {
  + ...
  + "configurations": {
  + ...
  + "fr": {
  + "browserTarget": "angular.io-example:build:fr"
  + }
  + }
  +}
  ```
  You then pass the configuration with the `ng serve` or `ng build` commands.
  