Add step-by-step instructions to README.md

[peterbroadhurst]

I was working on the getting started docs in FireFly, and I wanted to defer all the samples related docs to point at the README. md in this repo.

However, unless you're a Node.js developer I don't think currently there's quite enough info in this repo to get people started.

Here's what was in the docs on the FireFly side, which I'm pulling out.
I think even this is a little bit less than the step by step someone might need.

... raising a separate issue for a discussion on getting a Docker built samples gallery

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This repository contains two straightforward, turnkey samples. A simple CLI-based flow, and a more robust flow with a React frontend, with the option for customized recipients and messaging strings.

• FireFly Samples Repo
  • clone this ^^
• Node.js - latest version recommended (v14.17.0)
  • node -v to check your current version
• Install the node dependencies in each folder: (/firefly-samples/private-data-transfer-cli & /firefly-samples/private-data-transfer-ui) with npm install.
• The following command: npm run start will kick either program. Run the command separately from the root of each project.
  • The "Private-Data-Transfer-Cli" will self execute with a message broadcast and acknowledgement of message receipt.
  • The "Private-Data-Transfer-UI" will serve locally on port 3000. You can toggle amongst your FireFly memberships to see different message/transaction details - timestamp, sender and inputs.