Update in LocalizationExample

This is still not quite right. It should be:
```
    * htmlContent
        * htmlfragment.html – html template to be localized by mustache
    * nls
        * strings.js – configures i18n by specifying the root folder  and listing the locales supported by the plugin
        * root
            * strings.js – contains the English strings
        * fr
            * strings.js – contains the French strings
        * etc. for each locale
```