Update README.md

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

Author: FabianaCampanari

README.md

@@ -1510,6 +1510,8 @@ u_1 = 0, leading to v_1 = 12, u_2 = 6, v_2 = 18, u_3 = -3, and v_3 = 37.
 
 ### -  c̄₁₂ = -4, c̄₁₃ = -6, c̄₂₃ = -2, c̄₃₁ = 0
 
+- c̄₁₂ = -4,  c̄₁₃ = -6,  c̄₂₃ = -2,  c̄₃₁ = 0
+
 ### - Remaining negative reduced costs necessitate further iterations.
 
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