docs: add "Getting Started" section to the README and add the readme to the docs #102

Job	Run time
Android Build Only (aarch64-linux-android)	1m 9s
Android Build Only (armv7-linux-androideabi)	1m 8s
cargo deny	31s
Checking docs	2m 1s
Checking fmt	26s
check_semver	2m 14s
codespell	5s
clippy_check	3m 1s
Cross Build Only (x86_64-unknown-freebsd)	44s
Cross Test (i686-unknown-linux-gnu)	1m 3s
Minimal Supported Rust Version	19s
CI Test Suite / Tests (ubuntu-latest, stable, all)	2m 6s
CI Test Suite / Tests (ubuntu-latest, stable, none)	31s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	2m 29s
CI Test Suite / Tests (ubuntu-latest, stable, default)	1m 15s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	1m 4s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	1m 30s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	1m 38s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	34s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	58s
	24m 46s

Provide feedback