Heroku example for the Deployment Guide

[trevorturk]

Re: socketry/falcon-rails-example#1, adding some documentation to show a full working example Heroku configuration for Falcon.

Note I wasn't sure where to put this, but I believe this could be a reasonable place. I also tried to follow the new configuration style in the guides, but feedback is welcome.

Note also that I included preload, cache, and count config examples which may or may not be desirable. I'm happy to adjust. We could also adjust to use a different ENV var etc as opposed to FALCON_COUNT -- feel free to adjust as you like, or let me know what you'd prefer and I'll make adjustments.

Fixes #189
Fixes #121

Types of Changes

• Documentation.

Contribution

• I agree to the Developer's Certificate of Origin 1.1.

[ioquatix]

This looks great to me.

For all the major configuration options you've listed, it would be great to explain what it does, and how to use it.

[trevorturk]

Ok, I made some updates. Let me know what you think! I added some more info and links. I changed FALCON_COUNT to WEB_CONCURRENCY since this is what most people use for Puma, but let me know what you think. I also removed cache false because from my testing it appears that the cache is disabled by default now. (Is that right? I thought I remembered it being enabled by default, which I found surprising, but perhaps we disabled it by default now?) I also tagged this as fixing a couple old related issues I found.

[ioquatix]

Thanks, this looks great!