Add Exif orientation example in a doc comment #1572

Job	Run time
Fuzz targets (cargo-fuzz)	47s
build_benchmarks	45s
Fuzz targets (afl)	2m 12s
cargo-deny	21s
cargo-semver-checks	22s
clippy	2m 3s
public_private_dependencies	24s
rustfmt	7s
test_avif_decoding	1m 41s
test_features	36s
test_toolchains (1.67.1)	1m 2s
test_other_archs (powerpc-unknown-linux-gnu)	2m 17s
test_toolchains (nightly)	1m 42s
test_features (default)	1m 50s
test_other_archs (i686-unknown-linux-gnu)	1m 35s
test_features (rayon)	24s
test_toolchains (beta)	1m 32s
test_features (avif)	1m 7s
test_features (bmp)	46s
test_features (dds)	34s
test_features (exr)	46s
test_features (ff)	29s
test_features (gif)	36s
test_features (hdr)	45s
test_features (ico)	36s
test_features (jpeg)	40s
test_features (png)	26s
test_features (pnm)	16s
test_features (qoi)	23s
test_features (tga)	22s
test_features (tiff)	35s
test_features (webp)	29s
	28m 30s

Provide feedback