Change compatibility description for add index acceleration&PiTR (#11146)
Change compatibility description for add index acceleration&PiTR (#11146)

* Change compatibility description for add index acceleration&PiTR

* Apply suggestions from code review

Co-authored-by: shichun-0415 <21e49396de21ba1999fa7edf9177e7d3573ecd23@users.noreply.github.com>

Co-authored-by: shichun-0415 <21e49396de21ba1999fa7edf9177e7d3573ecd23@users.noreply.github.com>
pingcap/docs,pingcap/docs,pingcap/docs