docs(upgrade-guide): fix broken links and outdated tips (#12704)
docs(upgrade-guide): fix broken links and outdated tips (#12704)


rstoenescu/quasar-framework,quasarframework/quasar,quasarframework/quasar,quasarframework/quasar,quasarframework/quasar,rstoenescu/quasar-framework,rstoenescu/quasar-framework