Updated Readme, added section for translations

README.md

@@ -110,6 +110,20 @@ Define `mobileWidth`, `mobileHeight`, `mobileMargin`, `mobileAlignment` as follo
 }
 ```
 
+## Translation of toolbar
+The package offers translations for the quill toolbar, it will follow the system locale unless you set your own locale with:
+```
+QuillToolbar(locale: Locale('fr'), ...)
+```
+Currently, translations are available for these locales:
+* `Locale('en')`
+* `Locale('de')`
+* `Locale('fr')`
+* `Locale('zh', 'CN')`
+
+### Contributing to translations
+The translation file is located at [lib/src/translations/toolbar.i18n.dart](lib/src/translations/toolbar.i18n.dart). Feel free to contribute your own translations, just copy the English translations map and replace the values with your translations. Then open a pull request so everyone can benefit from your translations!
+
 ## Migrate Zefyr Data
 
 Check out [code](https://github.com/jwehrle/zefyr_quill_convert) and [doc](https://docs.google.com/document/d/1FUSrpbarHnilb7uDN5J5DDahaI0v1RMXBjj4fFSpSuY/edit?usp=sharing).