So I've tried following the installation instructions but nothing makes sense. I didn't have a .npmrc file so I just made one. I don't know if that's correct or not. I followed the instructions for the gsap-bonus.tgz file and it worked one time and stopped working so I know everythings in there correctly. The only problem is I don't understand how to register my club greensock membership. I'm using visual studio code and have been using the command line implemented in it. can someone give me the exact syntax I need to use? I'm using npm. thanks.