Add some handy links to README

README.md

 # arch-boxes
-[![Actions Status](https://github.com/archlinux/arch-boxes/workflows/Github-Actions/badge.svg)](https://github.com/archlinux/arch-boxes/actions)
+[![CI Status](https://gitlab.archlinux.org/archlinux/arch-boxes/badges/master/pipeline.svg)](https://gitlab.archlinux.org/archlinux/arch-boxes/-/pipelines)
+
+- [Vagrant Cloud](https://app.vagrantup.com/archlinux/boxes/archlinux)
+- [Browse latest QEMU build artifacts](https://gitlab.archlinux.org/archlinux/arch-boxes/-/jobs/artifacts/master/browse?job=build:qemu)
+- [Browse latest VirtualBox build artifacts](https://gitlab.archlinux.org/archlinux/arch-boxes/-/jobs/artifacts/master/browse?job=build:virtualbox)
+- [Download latest QEMU QCOW2 image](https://gitlab.archlinux.org/archlinux/arch-boxes/-/jobs/artifacts/master/raw/output-qemu/packer-qemu?job=build:qemu)
+- [Download latest VirtualBox disk image](https://gitlab.archlinux.org/archlinux/arch-boxes/-/jobs/artifacts/master/download?job=build%3Avirtualbox)
 
 Arch-boxes provides automated builds of the Arch Linux releases for
 different providers and post-processors. Check the providers or post-processor sections if you want to know