diff --git a/README.md b/README.md
index cda49f1..a3ba61f 100644
--- a/README.md
+++ b/README.md
@@ -307,7 +307,7 @@ Ramanujan's deep insights into infinite series and modular forms continue to inf
 
    * Bohr's atomic model with quantized energy levels.
 
-   Formula for the energy levels of an electron in a hydrogen atom:  
+   * ** Formula for the energy levels of an electron in a hydrogen atoma**: