diff --git a/docs/README.md b/docs/README.md
index d57bbabaf2528cf7d052651a0a9dadc485fd3a38..f5f964de0db856463995b13eb8c5b7f6bf5c5aa3 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -10,6 +10,8 @@ The tests are run on [SIFT1B dataset](http://corpus-texmex.irisa.fr/), and provi
 
 Test variables are `nq` and `topk`.
 
+## Test reports
+
 The following is a list of existing test reports:
 
 - [IVF_SQ8](test_report/milvus_ivfsq8_test_report_detailed_version.md)