Docs: Give tip on why to use sync methods over async

[mhulse]

Was discussing with coworker and I said this:

I highly recommend dicking around with node CLI stuff ... It's got less stuff to worry about as it's a CLI thing... The trick is to use sync methods as it's easier to manage the code

Typically for cli apps you don't want async

[mhulse]

Some other semi-related thoughts about this project:

I think this is a cool example of using node for CLI app:
https://github.com/mhulse/kludgy
if you look at code
I do some cool tricks to use shell scripts and web page scraping ...
That code is currently broken as I think Google maps change something on their API:
mhulse/kludgy#31
But I had a ton of fun writing that. Humble bragging aside, CLI node apps are fun because you don't have to do a bunch of web-related work, and you can hone ES6 node/JS skills for a small but useful project.
For example, on Bitbucket private repos, I have done a ton of CLI apps to help me build printed books ... The key is obviously, having a tool you need to build.
I love shell scripting and bash, but you can do all of that much easier in JS and installing node isn't so bad in terms of a system-level dependency.

[mhulse]

Or, use async/await, which is so much easier and non-blocking!