Update README.md

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

Author: FabianaCampanari

README.md

@@ -295,9 +295,9 @@ The **graphical method** for solving simple linear programming (LP) problems inv
 
     $$a_{i1}x_1$$ + $$a_{i2}x_2 \geq b_i$$
 
-    ```latex
-    a_{i1}x_1 + a_{i2}x_2 \geq b_i
-    ```
+  ```latex
+  a_{i1}x_1 + a_{i2}x_2 \geq b_i
+  ```
 
 
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