Add screenshots to documentation (#832) #2740

Job	Run time
formatting	3m 22s
cargo clippy (windows-latest)	5m 21s
cargo clippy (macos-latest)	2m 37s
cargo check (msrv) (wasm32)	33s
cargo clippy (ubuntu-latest)	3m 21s
cargo check (msrv) (windows-latest)	1m 34s
cargo check (aarch64-android)	22s
cargo check (msrv) (macos-latest)	36s
cargo clippy (wasm32)	2m 1s
cargo check (msrv) (ubuntu-latest)	49s
cargo doc	2m 7s
cargo miri (unsafe tree_arena)	42s
Prime LFS Cache	6s
cargo test (wasm32)	21s
typos	6s
cargo test (windows-latest)	3m 46s
cargo test (macos-latest)	1m 47s
cargo test (ubuntu-latest)	3m 56s
	33m 27s

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