diff --git a/README.md b/README.md
index 1685b93..d83906a 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # ProgrammingI_Leukemia_analysis
-Course project bioinformatics programming I
+## Course project bioinformatics programming I
 
 
 read_data.py is for read in data;