Update doc link for 6/edge (#303) #161

Job	Run time
ci-tests / Lint	15s
Build charm / Get workflow version / Get workflow version	4s
ci-tests / Unit tests	2m 25s
ci-tests / Check libraries	29s
ci-tests / Build charms / Get workflow version / Get workflow version	9s
Build charm / Build charm	8m 32s
ci-tests / Build charms / Collect charms	13s
ci-tests / Build charms / Build mongodb charm \| base #0	2m 20s
ci-tests / Build charms / Build legacy-application charm \| base #0	1m 34s
ci-tests / Build charms / Build application charm \| base #0	2m 1s
ci-tests / charm-integration	12m 24s
ci-tests / ha-integration	50m 46s
ci-tests / relation-integration	19m 35s
ci-tests / legacy-integration	4m 31s
ci-tests / tls-integration	26m 40s
ci-tests / backup-integration	1h 14m 24s
ci-tests / metric-integration	18m 49s
ci-tests / sharding-integration	40m 41s
ci-tests / sharding-relation-integration	11m 11s
Release charm / Get workflow version / Get workflow version	8s
Release charm / Release charm	37s
Release libraries	25s
	4h 38m 13s

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