docs(iroh-net): Minor tweaks in the public iroh_net::dns module #8219

Job	Run time
check_semver	3m 15s
cargo deny	31s
Checking fmt	15s
Checking docs	1m 15s
clippy_check	2m 25s
Cross compile (i686-unknown-linux-gnu)	2m 28s
Minimal Supported Rust Version	1m 17s
Cross compile (armv7-linux-androideabi)	59s
Run network simulations/benchmarks	7m 58s
Cross compile (aarch64-linux-android)	58s
CI Test Suite / Tests (ubuntu-latest, stable, all)	3m 8s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	3m 39s
CI Test Suite / Tests (ubuntu-latest, stable, none)	2m 41s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	3m 52s
CI Test Suite / Tests (ubuntu-latest, stable, default)	3m 15s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	3m 59s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	3m 45s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	3m 0s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	3m 34s
	52m 14s

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