Move neo-tree example from README to an optional plugin

README.md

@@ -99,41 +99,10 @@ That's it! Lazy will install all the plugins you have. Use `:Lazy` to view
 current plugin status. Hit `q` to close the window.
 
 Read through the `init.lua` file in your configuration folder for more
-information about extending and exploring Neovim.
+information about extending and exploring Neovim. That includes also
+examples of adding popularly requested plugins.
 
 
-#### Examples of adding popularly requested plugins
-
-NOTE: You'll need to uncomment the line in the init.lua that turns on loading custom plugins.
-
-<details>
-  <summary>Adding a file tree plugin</summary>
-
-This will install the tree plugin and add the command `:Neotree` for you.
-For more information, see the documentation at
-[neo-tree.nvim](https://github.com/nvim-neo-tree/neo-tree.nvim).
-
-In the file: `lua/custom/plugins/filetree.lua`, add:
-
-```lua
--- File: lua/custom/plugins/filetree.lua
-
-return {
-  "nvim-neo-tree/neo-tree.nvim",
-  version = "*",
-  dependencies = {
-    "nvim-lua/plenary.nvim",
-    "nvim-tree/nvim-web-devicons", -- not strictly required, but recommended
-    "MunifTanjim/nui.nvim",
-  },
-  config = function ()
-    require('neo-tree').setup {}
-  end,
-}
-```
-
-</details>
-
 ### Getting Started
 
 [The Only Video You Need to Get Started with Neovim](https://youtu.be/m8C0Cq9Uv9o)

init.lua

@@ -842,6 +842,7 @@ require('lazy').setup({
   -- require 'kickstart.plugins.indent_line',
   -- require 'kickstart.plugins.lint',
   -- require 'kickstart.plugins.autopairs',
+  -- require 'kickstart.plugins.neo-tree',
 
   -- NOTE: The import below can automatically add your own plugins, configuration, etc from `lua/custom/plugins/*.lua`
   --    This is the easiest way to modularize your config.

lua/kickstart/plugins/neo-tree.lua

@@ -0,0 +1,25 @@
+-- Neo-tree is a Neovim plugin to browse the file system
+-- https://github.com/nvim-neo-tree/neo-tree.nvim
+
+return {
+  'nvim-neo-tree/neo-tree.nvim',
+  version = '*',
+  dependencies = {
+    'nvim-lua/plenary.nvim',
+    'nvim-tree/nvim-web-devicons', -- not strictly required, but recommended
+    'MunifTanjim/nui.nvim',
+  },
+  cmd = 'Neotree',
+  keys = {
+    { '\\', ':Neotree reveal<CR>', { desc = 'NeoTree reveal' } },
+  },
+  opts = {
+    filesystem = {
+      window = {
+        mappings = {
+          ['\\'] = 'close_window',
+        },
+      },
+    },
+  },
+}