Add PIT HLD document.#1014

Closed

clarklee-guizhao wants to merge 3 commits intosonic-net:masterfrom

clarklee-guizhao:pit

Commits on Jun 7, 2022

Add PIT HLD document.
clarklee-guizhao
committed

Commits on Oct 31, 2022

Merge branch 'master' into pit
clarklee-guizhao
authored

Commits on Nov 22, 2022

Fix a misleading word, 'lighten up' to 'reduce'
clarklee-guizhao
committed