add v0.4.0

CHANGELOG.md

@@ -5,3 +5,4 @@
 - [v0.2.0](https://github.com/ntk148v/neovim-config/tree/v0.2.0): started from this version, switch from VimL to Lua. For the reason, you may to check [neovim's official wiki](https://github.com/neovim/neovim/wiki/FAQ#why-embed-lua-instead-of-x). Follow [KISS principle](https://en.wikipedia.org/wiki/KISS_principle), this version uses the least plugins as possible. It's more like a skeleton, users can add more plugins and LSP.
 - [v0.2.1](https://github.com/ntk148v/neovim-config/tree/v0.2.1): this version contains some minor changes.
 - [v0.3.0](https://github.com/ntk148v/neovim-config/tree/v0.3.0): I decide to switch to [lazy.nvim](https://github.com/folke/lazy.nvim) as my plugin manager, instead of [packer](https://github.com/wbthomason/packer.nvim). The main reason is [lazy.nvim's support for plugin structure](https://github.com/folke/lazy.nvim#-structuring-your-plugins).
+- [v0.4.0](https://github.com/ntk148v/neovim-config/tree/v0.4.0): Restructure the source code and change the customize configuration logic.