docs(readme): add neovim minimum version (#369)

Need 0.9.0 or higher for `vim.fs` access.

README.md

@@ -7,6 +7,7 @@ More demo examples can be found in the [showcase issue](https://github.com/nvim-
 
 ### Table of Contents
 
+- [Requirements](#requirements)
 - [Installation](#installation)
 - [Setup and Configuration](#setup-and-configuration)
 - [Usage](#usage)
@@ -20,22 +21,27 @@ More demo examples can be found in the [showcase issue](https://github.com/nvim-
 
 ---
 
+## Requirements
+- Neovim >= **0.9.0**
+- [fd](https://github.com/sharkdp/fd) (optional, for faster browser)
+- git (optional, for display git status)
+
 ## Installation
 
 Install the plugin with your preferred package manager.
 
 ```lua
--- packer
-use {
-    "nvim-telescope/telescope-file-browser.nvim",
-    requires = { "nvim-telescope/telescope.nvim", "nvim-lua/plenary.nvim" }
-}
-
 --lazy
 {
     "nvim-telescope/telescope-file-browser.nvim",
     dependencies = { "nvim-telescope/telescope.nvim", "nvim-lua/plenary.nvim" }
 }
+
+-- packer
+use {
+    "nvim-telescope/telescope-file-browser.nvim",
+    requires = { "nvim-telescope/telescope.nvim", "nvim-lua/plenary.nvim" }
+}
 ```
 
 <details>
@@ -49,12 +55,6 @@ Plug 'nvim-telescope/telescope-file-browser.nvim'
 
 </details>
 
-#### Optional Dependencies
-
-- `telescope-file-browser` optionally leverages [fd](https://github.com/sharkdp/fd) if installed for faster, more async browsing
-- [`nvim-web-devicons`](https://github.com/nvim-tree/nvim-web-devicons) for file icons
-- `git` to show the status of files directly in the file browser.
-
 ## Setup and Configuration
 
 You can configure the `telescope-file-browser` like any other `telescope.nvim` picker. Please see `:h telescope-file-browser.picker` for the full set of options dedicated to the picker. Unless otherwise stated, you can pass these options either to your configuration at extension setup or picker startup. For instance, you can map `theme` and [mappings](#remappings) as you are used to from `telescope.nvim`.