update download page

docs/download.shtml

@@ -43,9 +43,10 @@ is to use the <a href="https://github.com/m3g/Packmol.jl#packmol">Julia wrapper
 </table>
 <br>
 This will open a GUI from which you will be able to select the input file to be used by Packmol.
-Additional details can be found in the <a href="https://github.com/m3g/Packmol.jl#packmol">Packmol.jl page</a>.
 <br>
 Steps a) and b) need to be done only once. Step c) is needed every time you want to run Packmol.
+<br>
+Additional details, like command-line execution and scripting alternatives, can be found in the <a href="https://github.com/m3g/Packmol.jl#packmol">Packmol.jl page</a>.
 
 <h3> Advanced download alternatives: </h3>