Story: Building a parachain from start to finish

[lsaether]

It may be a little early to think about this but I think having a pro-active approach to creating it will pay off later.

Idea:

We have an "all-encompassing" beginners tutorial for creating specifically a parachain that will be deployed to Polkadot similar to the Substratekitties tutorial made by the Parity team.

Components:

1. Creating a runtime with substrate (since Parity has already produced a ton of content for this let's not focus on it too heavily but we will still need to do it).
2. Making your Substrate chain compatible with Polkadot
3. Running a collator node for your parachain
4. Interacting across the Polkadot network (Interchain communications)
5. Deploying your parachain on the testnet
6. Creating a UI (or using Polkadot UI) with your parachain

Purpose:

The Substrate developers hub already has really great tutorials for building a substrate chain (2 beginners tutorials, 1 intermediate) but there is not yet any work being done for a specifically Polkadot parachain tutorial (what we will do in this issue).

[ltfschoen]

I published this parachain viewing, creating, and deploying guide based on discussions in Riot a few months ago, which may be handy https://github.com/paritytech/polkadot/wiki/Parachains