Update out-of-date README info, and test Github Actions cargo cache #14

	on:
	push:
	branches:
	- rrOSt-testing
	pull_request:
	branches:
	- rrOSt-testing
	jobs:
	test_os:
	name: Run all tests on the OS
	runs-on: ubuntu-22.04
	defaults:
	run:
	shell: bash
	working-directory: ./os
	steps:
	- uses: actions/checkout@v3
	- uses: ruby/setup-ruby@v1
	with:
	ruby-version: "3.0.3"
	bundler: "2.4.19"
	bundler-cache: false
	rubygems: "3.2.22"

	# Setup Ruby Environment
	- name: Set Bundler Path
	run: bundle config set --local path '.vendor/bundle'
	working-directory: .
	- name: Tell Bundler not to use development?
	run: bundle config set --local without 'development'
	working-directory: .
	- name: Install Ruby Gems
	run: bundle install
	working-directory: .

	# Setup Cargo Environment
	- name: Install latest Nightly Rust
	uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: nightly-2022-10-13
	components: rust-src,llvm-tools-preview, rustfmt, clippy
	- uses: Swatinem/rust-cache@v2
	with:
	workspaces: "./os"
	cache-targets: "true"
	cache-all-crates: "true"
	- name: Install OS target
	run: rustup target add aarch64-unknown-none-softfloat
	- name: Install needed crates
	run: cargo install --locked cargo-binutils rustfilt

	# Run All OS Tests
	- name: Run boot test
	run: make test_boot
	- name: Run unit tests
	run: make test_unit
	- name: Run integration tests
	run: make test_integration

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