Update README.md

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

Author: FabianaCampanari

README.md

@@ -1701,6 +1701,13 @@ v_1 &= 12, \quad v_2 = 18, \quad v_3 = 37
 
 #### ***Conclusion:** Negative reduced costs $(x_{12}, x_{31})$ indicate the [solution is **not optimal]()***.
 
+**Conclusion:** Negative reduced costs (x12, x31) indicate the solution is **not optimal**.
+
+(x_{12}, x_{31})
+$(x_{12}, x_{31})$
+$\(x_{12}, x_{31})$
+
+
 
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