Update README

README.md

@@ -8,21 +8,41 @@ julia> import Pkg
 julia> Pkg.add("MQLib")
 ```
 
-# Basic Usage
+## Basic Usage
 ```julia
-julia> using JuMP, MQLib
+using JuMP, MQLib
 
-julia> Q = [
-         -1  2  2
-          2 -1  2
-          2  2 -1
-       ]
+Q = [
+   -1  2  2
+    2 -1  2
+    2  2 -1
+]
 
-julia> model = Model(MQLib.Optimizer)
+model = Model(MQLib.Optimizer)
 
-julia> @variable(model, x[1:3], Bin)
+@variable(model, x[1:3], Bin)
+@objective(model, Max, x' * Q * x)
 
-julia> @objective(model, Max, x' * Q * x)
+optimize!(model)
+```
+
+## Selecting Heuristics
+
+This wrapper allows one to access all 39 QUBO and Max-Cut Heuristics provided by [MQLib](https://github.com/MQLib/MQLib).
+Selecting the method to be used can be achieved via JuMP's attribute interface:
 
-julia> optimize!(model)
+```julia
+JuMP.set_optimizer_attribute(model, "heuristic", "ALKHAMIS1998")
 ```
+
+or by calling MQLib helper functions:
+
+```julia
+MQLib.set_heuristic(model, "ALKHAMIS1998")
+```
+
+To list available heuristics and their descriptions, run:
+
+```julia
+MQLib.show_heuristics()
+```