Add to FAQ: Is Node.js a requirement?

[hhzl]

Richard Eng asks on the 23rd Nov 2014 on the ML:

Question
I learned that Node.js is an installation requirement for Amber. Does this mean that Amber is tied to using Node on the back end? There are other web servers that I prefer to use.

Answer
nodejs is required for the most convenient way to develop Amber apps at the moment. It is possible to use other servers but you are on your own (IOW: don't unless you need to; if you must, make sure PUT works by writing the file).

For deployment, use server's docs. Deployed amber files is just a couple of of HTML, CSS and JS files, so it's only about serving them.

[sebastianconcept]

Thanks @horrido

Adding it..