update docs

README.md

@@ -19,12 +19,13 @@ All paths are ensured to be valid ones, relative paths are stored in their expan
 
 Run `markd help` for a full list of supported commands and arguments. Run `markd <COMMAND> --help` to get more info on the command.
 
-> Note: bookmarks are stored in `bookmarks.json` file in the user home directory in the form of `"name":"path"`, which can also be directly edited if necessary.
+> Note: bookmarks are stored in `bookmarks.toml` file in the user home directory in the form of `name = "path"`, which can also be directly edited if necessary.
 
 ## Shell Support
 Since 'cd' is a built-in shell command, you need to use 'command substitution' to make use of markd to switch directories.
 To make it work, simply add a function definition to your shell config file. After adding the necessary code to your shell config, you should be able to jump between directories using the command `goto <bookmark-name>`.
 > Note: The function name used here is 'goto' but you can change it to whatever you prefer.
+> The following shell functions can also be generated to stdout by running the command `markd shell <shell_name>`
 
 ### Fish
 - Create a `functions` directory in fish config folder (usually `/home/user/.config/fish`)