Correct the alignement on the new set (commit f87585c)

Author: franckgaga

src/sets.jl

@@ -2742,8 +2742,8 @@ Any mix of lower and upper-triangular indices is valid. Elements `(i, j)` and
 To model the set:
 ```math
 \\begin{aligned}
-0 &\\le x^2           & \\le 1 \\\\
-0 &\\le y^2 + z^3 - w & \\le 0
+0 &\\le x^2                    & \\le 1 \\\\
+0 &\\le y^2 + x \\cdot z^3 - w & \\le 0
 \end{aligned}
 ```
 do