Can't find the .liquid file for Bold Membership app, what to do?

[vibilkrishnan]

I install one app (Bold membership), this app mentioned add some code for .liquid file.
That .liquid file was not found in that location when I searched for it.

[Akibhusen]

You can add that bold app file snippet in main-article.liquid file.

as it’s updated one you can’t find liquid code in JSON file,