diff --git a/dnmetis/backend_C++/dnmetis_backend/README.md b/dnmetis/backend_C++/dnmetis_backend/README.md
index 0d8a311..5eee817 100644
--- a/dnmetis/backend_C++/dnmetis_backend/README.md
+++ b/dnmetis/backend_C++/dnmetis_backend/README.md
@@ -6,11 +6,7 @@
 
 1.install dnmetis_backend
 
-    1.python3.7.5 setup.py  install
-
-
-
-
+    ```python3.7.5 setup.py  install
 
 2.Install log: