update readme

Author: thorek1

README.md

@@ -36,16 +36,10 @@ For more details have a look at the [documentation](https://thorek1.github.io/Ma
 
 `MacroModelling.jl` requires [`julia`](https://julialang.org/downloads/) version 1.8 or higher and an IDE is recommended (e.g. [`VS Code`](https://code.visualstudio.com/download) with the [`julia extension`](https://marketplace.visualstudio.com/items?itemName=julialang.language-julia)).
 
-Once set up you can install `MacroModelling.jl` by typing the following in the julia REPL:
+Once set up you can install `MacroModelling.jl` (and `Plots` and `StatsPlots` in order to plot) by typing the following in the Julia REPL:
 
 ```julia
-using Pkg; Pkg.add("MacroModelling")
-```
-
-In order to plot you also need to install `Plots` and `StatsPlots`:
-
-```julia
-using Pkg; Pkg.add(["Plots","StatsPlots"])
+using Pkg; Pkg.add(["MacroModelling", "Plots", "StatsPlots"])
 ```
 
 ### Example