Update README.md

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

Author: FabianaCampanari

README.md

@@ -419,6 +419,14 @@ In the context of Linear Programming (LP) and the Simplex Method, Excel Solver c
 
 This example shows how to solve a Linear Programming (LP) problem using the **Simplex Method** via **Excel Solver**.
 
+<br>
+
+### Problem:
+
+#### Maximize the objective function:
+
+### Z = 3x + 5y
+