Update README.md

PSORLab · Jun 15, 2023 · 613b17d · 613b17d
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@@ -79,7 +79,7 @@ at the middle of *X*.
 
 ![Figure_1](Figure_1.png)
 
-This can readily be extended to multivariate functions, for example, `f(x,y) = (4-2.1x^2+(x^4)/6)x^2+xy+(-4+4y^2)y^2`:
+This can readily be extended to multivariate functions, for example, `f(x,y) = (4 - 2.1x^2 + (x^4)/6)x^2 + xy + (-4 + 4y^2)y^2`:
 
 ```julia
 using McCormick
@@ -114,7 +114,8 @@ end
 McCormick.jl is a component of the EAGO.jl ecosystem. Please cite the following paper when using McCormick.jl:
 
 ```
-M. E. Wilhelm & M. D. Stuber (2022) EAGO.jl: easy advanced global optimization in Julia, Optimization Methods and Software, 37:2, 425-450, DOI: 10.1080/10556788.2020.1786566
+M. E. Wilhelm & M. D. Stuber (2022) EAGO.jl: easy advanced global optimization in Julia,
+Optimization Methods and Software, 37:2, 425-450, DOI: 10.1080/10556788.2020.1786566
 ```