Update README and CHANGELOG to be closer to typical Linebender #47

Job	Run time
cargo clippy (wasm32)	22s
cargo check (msrv) (windows-latest)	40s
cargo clippy (windows-latest)	45s
cargo check (msrv) (macos-latest)	26s
cargo check (msrv) (wasm32)	22s
cargo clippy (macos-latest)	20s
cargo check (msrv) (ubuntu-latest)	20s
cargo clippy (ubuntu-latest)	16s
cargo doc	12s
formatting	19s
cargo test (windows-latest)	47s
cargo test (wasm32)	14s
typos	6s
cargo test (macos-latest)	20s
cargo test (ubuntu-latest)	20s
	5m 49s

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