doc: update feature description

Author: streamtw

docs/index.md

@@ -5,13 +5,18 @@
 This is the document of v2 version, v1 document can be found here: [https://github.com/UniSharp/laravel-filemanager/tree/v1/docs](https://github.com/UniSharp/laravel-filemanager/tree/v1/docs)
 
 ## Features
- * CKEditor and TinyMCE integration
- * Standalone button
+ * File upload and management
  * Uploading validation
  * Cropping and resizing of images
- * Public and private folders for multi users
+ * Multiple integration options: 
+    * WYSIWYG editors integration (CKEditor, TinyMCE, Summernote)
+    * Standalone upload button
+    * Iframe
+ * Multi-user mode: 
+    * Shared folders: all users can upload and manage files
+    * Private folders: dedicated folder for each user, only the owner can upload or manage files within
  * Customizable routes, middlewares, views, and folder path
- * Supports two types : files and images. Each type works in different directory.
+ * Supports two categories: files and images. Each type works in different directory.
  * Supported locales : ar, bg, de, el, en, es, fa, fr, it, he, hu, nl, pl, pt-BR, pt_PT, ro, ru, sv, tr, zh-CN, zh-TW
 
 PRs are welcome!