doc: update use cases and case coverage

[davisjam]

• Split use cases into "web stack" and "other uses".
• Introduce new use cases based on the Node.js Foundation's
  Application Showcase (https://foundation.nodejs.org/resources/app-showcase)
  and other popular Node.js software I have encountered.

[davisjam]

This PR was inspired by the discussion at the Sept. 18 WG meeting (minutes are in #241).

If anyone is interested, here is a Google Doc with:

• The 116 Node.js apps listed as of Sept. 2018, plus some others (Micro'15, existing application benchmarks)
• A preliminary label of the App Showcase apps into one of the use cases
• A link to its GitHub if the app is open source

I shared a read-only link. If someone else wants to contribute, let me know.

[davisjam]

I have some ideas about workloads to add for use cases. Is this thread a good place to discuss them?

[mhdawson]

In respect to:

I have some ideas about workloads to add for use cases. Is this thread a good place to discuss them?

I think an issue as opposed to a PR would be a better place for a longer running discussion.

[mhdawson]

@davisjam that is a great list to have along with the classification of the area. Using the Node.js collection is a great idea.

[davisjam]

@mhdawson

Using the Node.js collection is a great idea.

It was your idea ;-)

[davisjam]

I think an issue as opposed to a PR would be a better place for a longer running discussion.

OK. Looks like #6 is a good place to do this.

[davisjam]

@jorangreef

1. I think you might have some comments on the "systems software" use case and perhaps others?
2. Where do you think your Ronomon back-end falls among these use cases?

[mhdawson]

@davisjam -> "It was your idea ;-)"

I guess that is why I liked it sooo much even though I forgot that. But thanks for actually putting it into action :)

[jorangreef]

Thanks @davisjam, replied in #6 (comment)