diff --git a/docs/source/sls/algorithm.rst b/docs/source/sls/algorithm.rst
index 25b7158c416c511b941821ba6abab27614a9db70..c5393346cce7b71b7168167a7244e4f2b475d0ce 100644
--- a/docs/source/sls/algorithm.rst
+++ b/docs/source/sls/algorithm.rst
@@ -59,8 +59,8 @@ Output
 Data Calibration Steps
 ``````````````````
 仪器效应改正包括以下步骤：
-    DQ Initialization
-    ''''''''''''''''''
+**DQ Initialization**
+