diff --git a/README.md b/README.md
index 9416566..05984a5 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ pip install chemlib
 
 ## Features
 
-Periodic table as a ```pandas.Dataframe``` object
+#### Periodic table as a ```pandas.Dataframe``` object
 
 ```python
 >>> import chemlib