Update README for MOI syntax

README.md

@@ -38,7 +38,7 @@ x = Variable(n)
 problem = minimize(sumsquares(A * x - b), [x >= 0])
 
 # Solve the problem by calling solve!
-solve!(problem, SCSSolver())
+solve!(problem, SCS.Optimizer())
 
 # Check the status of the problem
 problem.status # :Optimal, :Infeasible, :Unbounded etc.