Add tweet link

README.md

@@ -1,4 +1,4 @@
-## netboot.xyz
+## netboot.xyz [![Tweet](https://img.shields.io/twitter/url/http/shields.io.svg?style=social)](https://twitter.com/intent/tweet?text=Your%20favorite%20operating%20systems%20in%20one%20place!&url=https://netboot.xyz&hashtags=netbootxyz,ipxe,pxe,linux,tech,code)
 
 [![Build Status](https://github.com/netbootxyz/netboot.xyz/workflows/release/badge.svg)](https://github.com/netbootxyz/netboot.xyz/actions?query=workflow%3Arelease)
 [![Discord](https://img.shields.io/discord/425186187368595466)](https://discord.gg/An6PA2a)