Compiling installer.iss by adding additional line for IDP

[kimpurcell]

Hi,

Thanks for making this tool, works great!

I'd like to add the following line to make the installer.iss file compile properly:
#pragma include INCLUDE + ";" + ReadReg(HKLM, "Software\Mitrich Software\Inno Download Plugin", "InstallDir")

Initially it was failing to find idp.iss even after I install the plugin (v1.5.1).

I'd like to contribute and made the change. But when I attempted to sync the branch but looks like I'm not able to commit. First time for me using GitHub so let me know how I can contribute. If not, that's ok too just let me know.

Thank you!

Best regards,
Kim