v2.15.10
Chore: Theme Extension (#16686)
chore: remove getTestEle (#20811)
fix: vue version explicitly to 2.x (#21736)
chore: use codepen to display demo & fix doc error (#14747)
Theme: Refine GA track & Update footer link forward to online theme roller (#16007)
chore: Fix html tag error (#15331)
chore: update sponsor (#20425)