Removed the git submodule commands from README
Removed the git submodule commands from README

We're not using git submodules anymore so these commands aren't needed

EvolveLabs/electron-opus,Rantanen/node-opus,EvolveLabs/electron-opus,EvolveLabs/electron-opus,nfriedly/node-opus,Rantanen/node-opus,nfriedly/node-opus,nfriedly/node-opus,nfriedly/node-opus,Rantanen/node-opus,Rantanen/node-opus,EvolveLabs/electron-opus,Rantanen/node-opus