Update README and CHANGELOG to be closer to typical Linebender #44

Job	Run time
cargo check (msrv) (windows-latest)	41s
cargo clippy (wasm32)	21s
cargo check (msrv) (wasm32)	14s
cargo check (msrv) (macos-latest)	31s
cargo clippy (windows-latest)	39s
cargo check (msrv) (ubuntu-latest)	16s
cargo clippy (macos-latest)	19s
cargo doc	12s
formatting	23s
cargo clippy (ubuntu-latest)	17s
cargo test (windows-latest)	41s
cargo test (wasm32)	17s
cargo test (macos-latest)	24s
typos	3s
cargo test (ubuntu-latest)	15s
	5m 33s

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