Update README.md

Signed-off-by: Fabiana 🚀  Campanari <113218619+FabianaCampanari@users.noreply.github.com>

Author: FabianaCampanari

README.md

@@ -119,16 +119,16 @@ A chocolate manufacturer has a stock of chocolates, consisting of 130 kg with ch
 
 ### [Solution]():
 
-###  <p align="center"> Objective Function
+###  Objective Function
 
- <p align="center"> Maximize:
+#### Maximize:
 
 $$
 Z = 20x_1 + 12.5x_2
 $$
 
 
-### <p align="center"> Subject to Constraints:
+#### Subject to Constraints:
 
 $$
 \begin{cases}