Make flatpak ref autodownload

README.md

@@ -5,6 +5,7 @@ nheko
 [![Stable Version](https://img.shields.io/badge/download-stable-green.svg)](https://github.com/Nheko-Reborn/nheko/releases/v0.8.1)
 [![Nightly](https://img.shields.io/badge/download-nightly-green.svg)](https://matrix-static.neko.dev/room/!TshDrgpBNBDmfDeEGN:neko.dev/)
 [![Nightly Flatpak](https://img.shields.io/badge/download-nheko--nightly-green)](https://raw.githubusercontent.com/Nheko-Reborn/nheko/master/nheko-nightly.flatpakref)
+<a href='https://raw.githubusercontent.com/Nheko-Reborn/nheko/master/nheko-nightly.flatpakref' download=''><img alt='Download Nightly Flatpak' src='https://img.shields.io/badge/download-flatpak--nightly-green'/></a>
 [![#nheko-reborn:matrix.org](https://img.shields.io/matrix/nheko-reborn:matrix.org.svg?label=%23nheko-reborn:matrix.org)](https://matrix.to/#/#nheko-reborn:matrix.org)
 [![AUR: nheko](https://img.shields.io/badge/AUR-nheko-blue.svg)](https://aur.archlinux.org/packages/nheko)
 <a href='https://flathub.org/apps/details/io.github.NhekoReborn.Nheko'><img width='240' alt='Download on Flathub' src='https://flathub.org/assets/badges/flathub-badge-en.png'/></a>