add compat

Author: flixpar

Project.toml

@@ -12,3 +12,12 @@ JuMP = "4076af6c-e467-56ae-b986-b466b2749572"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 MathOptInterface = "b8f27783-ece8-5eb3-8dc8-9495eed66fee"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
+
+[compat]
+julia = "1"
+JuMP = "0.21"
+Hungarian = "0.6.0"
+Gurobi = "0.9"
+Distributions = "0.24, 0.25"
+Convex = "0.14"
+MathOptInterface = "0.9"