From c8795986279429c62d1984439adbcd0812384f50 Mon Sep 17 00:00:00 2001
From: qiancai <“qqzczy@126.com”>
Date: Mon, 15 Mar 2021 15:02:15 +0800
Subject: [PATCH] correct-the-title-level

Updated the title level of "Concentrated reads or writes" from the 2nd to the 3rd.
---
 dashboard/dashboard-key-visualizer.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dashboard/dashboard-key-visualizer.md b/dashboard/dashboard-key-visualizer.md
index 9d4044dc4af17..db7c1984187c3 100644
--- a/dashboard/dashboard-key-visualizer.md
+++ b/dashboard/dashboard-key-visualizer.md
@@ -156,7 +156,7 @@ In the heatmap above, bright and dark colors are a fine-grained mix. This indica
 
 In the heatmap above, there is an alternating brightness and darkness along the X-axis (time) but the brightness is relatively even along the Y-axis (Region). This indicates that the reads and writes change periodically, which might occur in scenarios of periodically scheduled tasks. For example, the big data platform periodically extracts data from TiDB every day. In this kind of scenarios, pay attention to whether the resources are sufficient during peak usage.
 
-## Concentrated reads or writes
+### Concentrated reads or writes
 
 ![Concentrated](/media/dashboard/dashboard-keyviz-continue.png)