Update README.md

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

Author: FabianaCampanari

README.md

@@ -205,6 +205,9 @@ The **graphical method** for solving simple linear programming (LP) problems inv
 
   $$\max/\min \quad Z$$ = $$c_1x_1 + c_2x_2$$
 
+      ```latex
+    Max/Min \quad Z = c_1x_1 + c_2x_2
+    ```
   
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