abe1c6825c
Update _index.md (#71400)
* Update _index.md
Added missing hyperlink for high availability and a small typo
* updates link
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Co-authored-by: Chris Moyer <chris.moyer@grafana.com>
(cherry picked from commit 4e50115d95)
Co-authored-by: Usman Ahmad <usman.ahmad@grafana.com>