docs(readme): standardize compat table (#488)

* docs(readme): standardize compat table

Signed-off-by: Frazer Smith <[email protected]>

* Update README.md

Signed-off-by: Frazer Smith <[email protected]>

---------

Signed-off-by: Frazer Smith <[email protected]>

Author: Fdawgs

README.md

@@ -4,19 +4,27 @@
 [![NPM version](https://img.shields.io/npm/v/@fastify/static.svg?style=flat)](https://www.npmjs.com/package/@fastify/static)
 [![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat)](https://standardjs.com/)
 
-Plugin for serving static files as fast as possible. Supports Fastify version `4.x`.
-
-| Fastify version | branch                                                               |
-| --------------- | -------------------------------------------------------------------- |
-| `^5.x`          | This branch
-| `^4.x`          | [`v7.x`](https://github.com/fastify/fastify-static/tree/v7.x)                                           |
-| `^3.x`          | [`v5.x`](https://github.com/fastify/fastify-static/tree/v5.x)         |
-| `^2.x`          | [`2.x`](https://github.com/fastify/fastify-static/tree/2.x)          |
-| `^1.11.x`       | [`1.x`](https://github.com/fastify/fastify-static/tree/1.x)          |
+Plugin for serving static files as fast as possible.
 
 ## Install
+```
+npm i @fastify/static
+```
+
+### Compatibility
+
+| Plugin version | Fastify version |
+| ---------------|-----------------|
+| `^8.x`         | `^5.x`          |
+| `^7.x`         | `^4.x`          |
+| `^5.x`         | `^3.x`          |
+| `^2.x`         | `^2.x`          |
+| `^1.x`         | `^1.x`          |
+
 
-`npm i @fastify/static`
+Please note that if a Fastify version is out of support, then so are the corresponding version(s) of this plugin
+in the table above.
+See [Fastify's LTS policy](https://github.com/fastify/fastify/blob/main/docs/Reference/LTS.md) for more details.
 
 ## Usage
 
@@ -492,4 +500,4 @@ fastify.addHook('onSend', function (req, reply, payload, next) {
 
 ## License
 
-Licensed under [MIT](./LICENSE)
+Licensed under [MIT](./LICENSE).