Add desc of "Storage Write Stall" row in the TiFlash grafana#6524

Merged

ti-chi-bot merged 5 commits intopingcap:masterfrom JaySon-Huang:add_tiflash_metrics_write_stall

Sep 29, 2021

+14

Commits on Sep 23, 2021

Commits on Sep 24, 2021

Align with the Chinese version
JaySon-Huang
committed

Commits on Sep 26, 2021