Update README.md

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

Author: FabianaCampanari

README.md

@@ -207,7 +207,7 @@ Joseph Fourier’s development of Fourier analysis allowed quantum mechanics to
 
  One of his most famous formulas is an infinite series for $\large \color{DeepSkyBlue} \frac{1}{\pi}$ :  
 
- $\( \pi \)$
+ $\huge \color{DeepSkyBlue} \( \pi \)$
 
  $\huge \color{DeepSkyBlue} \frac{1}{\pi} = \frac{2\sqrt{2}}{9801} \sum_{n=0}^{\infty} \frac{(4n)!(1103 + 26390n)}{(n!)^4 396^{4n}}$