Add webext-options-sync to the redame

readme.md

@@ -102,7 +102,7 @@ There are some extra classes you can use:
 
 ## Related
 
+- [webext-options-sync](https://github.com/fregante/webext-options-sync) - Helps you manage and autosave your extension's options
 - [webext-storage-cache](https://github.com/fregante/webext-storage-cache) - Map-like promised cache storage with expiration. Chrome and Firefox
-- [webext-dynamic-content-scripts](https://github.com/fregante/webext-dynamic-content-scripts) - Automatically registers your content_scripts on domains added via permission.request
 - [Awesome-WebExtensions](https://github.com/fregante/Awesome-WebExtensions) - A curated list of awesome resources for WebExtensions development.
 - [More…](https://github.com/fregante/webext-fun)