Clarify Local-backend in tidb-lightning-backends.md (#5278)#5279

Merged

ti-chi-bot merged 1 commit intopingcap:release-4.0from ti-srebot:release-4.0-868f416aebc2

Apr 9, 2021

+1-1

Commits on Apr 9, 2021

cherry pick pingcap#5278 to release-4.0

yikeke
authored and
ti-srebot
committed