Update README.md

Signed-off-by: Fabiana 🚀  Campanari <[email protected]>

Author: FabianaCampanari

README.md

@@ -96,7 +96,7 @@ Leonhard Euler, one of the most significant mathematicians in history, contribut
 
    * Developed the [Euler's Formula](), which links exponential functions to trigonometric functions. It is fundamental in wave mechanics and quantum state representation.  
 
-   ### **Euler's Formula:**
+   ### ***Euler's Formula:***
      
    $\huge \color{DeepSkyBlue} e^{i\theta} = \cos(\theta) + i\sin(\theta)$