Snap

docs: reorganizing links in the README by relevance + some rewording #4962

Job	Run time
arches	1s
mir-libs (amd64)	20m 37s
mir-libs (armhf)	25m 20s
mir-libs (arm64)	24m 24s
snap (canonical/mir-test-tools, amd64)	13m 11s
snap (canonical/mir-test-tools, armhf)	18m 1s
snap (canonical/mir-test-tools, arm64)	27m 32s
snap (canonical/confined-shell-wip, amd64)	6m 35s
snap (canonical/confined-shell-wip, armhf)	12m 56s
snap (canonical/confined-shell-wip, arm64)	11m 6s
snap (canonical/ubuntu-frame, amd64)	7m 51s
snap (canonical/ubuntu-frame, armhf)	12m 48s
snap (canonical/ubuntu-frame, arm64)	13m 45s
snap (Miriway/Miriway, amd64)	8m 7s
snap (Miriway/Miriway, armhf)	12m 56s
snap (Miriway/Miriway, arm64)	11m 36s
	3h 46m 46s

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