added new persistent mode

README.md

@@ -52,7 +52,7 @@ The following are the default configurations:
 -- ~/.config/yazi/init.lua
 require("bookmarks"):setup({
 	save_last_directory = false,
-	persist = false,
+	persist = "none",
 	notify = {
 		enable = false,
 		timeout = 1,
@@ -75,6 +75,14 @@ the last directory.
 When enabled the bookmarks will persist, i.e. if you close and reopen Yazi they will still be
 present.
 
+There are three possible values for this option:
+
+| Value  | Description                                                                                                            |
+| ------ | ---------------------------------------------------------------------------------------------------------------------- |
+| `none` | The default value, i.e., no persistance                                                                                |
+| `all`  | All the bookmarks are saved in persistent memory                                                                       |
+| `vim`  | This mode emulates the vim global marks, i.e., only the bookmarks in upper case (A-Z) are saved to persistent memory |
+
 ### `notify`
 
 When enabled, notifications will be shown when the user creates a new bookmark and deletes one or