Update tidb-distributed-execution-framework.md (#15606)#15683

Merged

ti-chi-bot[bot] merged 2 commits intopingcap:release-7.5from ti-chi-bot:cherry-pick-15606-to-release-7.5

Dec 12, 2023

+87-74

Commits on Dec 12, 2023

This is an automated cherry-pick of pingcap#15606

hfxsd
authored and
ti-chi-bot
committed
Delete tidb-roadmap.md
hfxsd
committed