Document usability of Node.js packages

[benwiley4000]

My biggest question going into this is whether any arbitrary Node.js package (including native bindings) can be required and used as with Electron. Based on this example which uses fs I believe that's the case. If so, that may be worth documenting in the list of "Features" (makes a difference for me if I have access to Node implementations of browser JS APIs like web audio).

[parro-it]

See #20
TLDR: yes, you can use node modules.
I also think that a small remark in documentation would be useful...