docs: upgrade guide refactor organizes releases into their own pages; moves upgrade guide to the root (#62402)
* organizes releases into their own pages; moves upgrade guide to the root
* adds and removes aliases
* Update docs/sources/upgrade-guide/upgrade-v8.0/index.md
Co-authored-by: Jack Baldry <jack.baldry@grafana.com>
* Update docs/sources/upgrade-guide/upgrade-v8.0/index.md
Co-authored-by: Jack Baldry <jack.baldry@grafana.com>
* Update docs/sources/upgrade-guide/upgrade-v8.0/index.md
Co-authored-by: Jack Baldry <jack.baldry@grafana.com>
* Update docs/sources/upgrade-guide/upgrade-v9.3/index.md
Co-authored-by: Jack Baldry <jack.baldry@grafana.com>
* Update docs/sources/shared/upgrade/upgrade-common-tasks.md
Co-authored-by: Jack Baldry <jack.baldry@grafana.com>
* Update docs/sources/shared/upgrade/upgrade-common-tasks.md
Co-authored-by: Jack Baldry <jack.baldry@grafana.com>
* Update docs/sources/shared/upgrade/upgrade-common-tasks.md
Co-authored-by: Jack Baldry <jack.baldry@grafana.com>
* corrects relrefs
---------
Co-authored-by: Jack Baldry <jack.baldry@grafana.com>
(cherry picked from commit ee2e294b4e)
Co-authored-by: Christopher Moyer <35463610+chri2547@users.noreply.github.com>