test

docs: document kernel and initrd in templates/default.yaml #10861

Job	Run time
Windows tests (WSL2)	9m 55s
Vulncheck	47s
Lints	1m 41s
Windows tests (QEMU)	15m 11s
Unit tests (oldstable)	1m 5s
Lint Go (macos-26)	1m 8s
Lint Go (windows-2025)	1m 39s
Lint Go (ubuntu-24.04)	24s
Unit tests (stable)	3m 59s
Integration tests (QEMU, macOS host)	13m 2s
Cross-compile (NetBSD, DragonFlyBSD)	1m 48s
Integration tests (BATS)	19m 38s
gomodjail (experimental; failures shall not block merging PRs)	7m 38s
Integration tests (vz) (default.yaml)	17m 16s
Upgrade tests (QEMU, macOS host) (v0.15.1)	19m 56s
VMNet tests (QEMU)	12m 27s
Colima tests (QEMU, Linux host)	4m 31s
Smoke tests (QEMU, old Linux host)	2m 7s
Integration tests (QEMU, Linux host) (opensuse.yaml)	5m 53s
Integration tests (QEMU, Linux host) (docker.yaml)	18m 11s
Integration tests (QEMU, Linux host) (../hack/test-templates/alpine-iso-9p-writable.yaml)	4m 49s
Integration tests (QEMU, Linux host) (../hack/test-templates/test-misc.yaml)	21m 11s
Integration tests (QEMU, Linux host) (alpine.yaml)	6m 3s
Integration tests (QEMU, Linux host) (fedora.yaml)	5m 56s
Integration tests (QEMU, Linux host) (../hack/test-templates/net-user-v2.yaml)	6m 39s
Integration tests (QEMU, Linux host) (debian.yaml)	5m 28s
Integration tests (QEMU, Linux host) (archlinux.yaml)	5m 18s
	3h 33m 40s

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