Update README.md

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

Author: FabianaCampanari

README.md

@@ -636,14 +636,26 @@ x_2 = \text{quantity produced of product P2}
 
 ### $2x_1 + 4x_2 \leq 100$
 
+```latex
+2x_1 + 4x_2 \leq 100
+```
+
 #### ➢ [R2]() Constraint:
 
 ### $3x_1 \leq 90$
 
+```latex
+$3x_1 \leq 90
+```
+
 #### ➢ [R3]() Constraint:
 
 ### $5x_1 + 3x_2 \leq 120$
 
+```latex
+5x_1 + 3x_2 \leq 120
+```
+