Update Arch Linux package URL in README.md

The old URL returns 404 now.

README.md

@@ -6,7 +6,7 @@ nheko
 [![Nightly](https://img.shields.io/badge/download-nightly-green.svg)](https://matrix-static.neko.dev/room/!TshDrgpBNBDmfDeEGN:neko.dev/)
 <a href='https://flatpak.neko.dev/repo/nightly/appstream/im.nheko.Nheko.flatpakref' download='nheko-nightly.flatpakref'><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)
-[![Arch package](https://repology.org/badge/version-for-repo/arch/nheko.svg)](https://archlinux.org/packages/community/x86_64/nheko/)
+[![Arch package](https://repology.org/badge/version-for-repo/arch/nheko.svg)](https://archlinux.org/packages/extra/x86_64/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>
 
 The motivation behind the project is to provide a native desktop app for [Matrix] that