doc: rewrite README.md

[coolaj86]

Re:

• [x] https://github.com/dashpay/platform/issues/1531
• [ ] https://github.com/dashpay/platform/issues/1532
• [ ] https://github.com/dashpay/platform/issues/1533
• [ ] https://github.com/dashpay/platform/issues/1534
• [ ] https://github.com/dashpay/platform/issues/1535
• [ ] https://github.com/dashpay/platform/issues/1536

Preview

See https://github.com/coolaj86/platform/tree/patch-4#table-of-contents

To-Dos

• [ ] A lot of these command blocks simply need to be moved into scripts:

  ./scripts/prereq-linux-install-deps
  ./scripts/prereq-macos-install-brew-and-llvm
  ./scripts/prereq-macos-install-deps
  ./scripts/install
  

• [ ] Also need to finish the Table of Contents
• [ ] Core Packages needs a direct link ./packages#core-packages
• [ ] Needs "How to Unf***" section for macOS w/ llvm
• [ ] sudo apt install -y llvm llvm-runtime
• [ ] Needs 16gb of RAM to build (8gb will fail) + ALL THE CPUs
• [ ] Command 'protoc-c' not found, but can be installed with:
  npm install --location=global protoc-gen-ts
  ~~sudo apt install protobuf-c-compiler~~
• [ ] https://github.com/dashpay/platform/issues/1535

I'll work on that once I've verified what set of instructions and scripts are correct.

[coolaj86]

Rules:

• paths should always start with / or ./ so that it's clear to the reader what's a path and what's a command (ex: 'build' vs './build')
• ENV files should be copied with the correct permissions

corepack enable
yarn install
yarn workspace @dashevo/rs-drive build
yarn workspace @dashevo/wasm-dpp build
yarn workspaces focus --production @dashevo/drive
cp -RPp ./packages/js-drive/.env.example ./packages/js-drive/.env

[shumkov]

@coolaj86 Please reopen PR if you are going to finish it