Update README.md

Insipired by/copied from https://github.com/NTBBloodbath/color-converter.nvim/edit/main/README.md.

README.md

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 # fzf :heart: lua
 
+![Neovim version](https://img.shields.io/badge/Neovim-0.5-57A143?style=flat-square&logo=neovim)
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+[Installation](#nstallation) • [Usage](#usage) • [Commands](#commands) • [Customization](#customization)
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 ![screenshot](https://raw.githubusercontent.com/ibhagwan/fzf-lua/main/screenshots/main.png)
 
 [fzf](https://github.com/junegunn/fzf) changed my life, it can change yours too, if you allow it.
 
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 ### Rationale
 
 What more can be said about [fzf](https://github.com/junegunn/fzf)? It is the