Add note about using bundled libraries.

[Tormak9970]

Some libraries will flat out not work (as expected bc no fs etc). For those that do, you may need to set nodeResolve({ preferBuiltins: false }), in the rollup.config.js file in order for it to work onthe deck. Not sure what the best place in the wiku for this information would be, but I think having a "Using npm libraries" guide would work well.