build

Update the documentation for `jj next` #10372

Job	Run time
build (ubuntu-latest)	4m 2s
cargo-deny (advisories)	28s
build (macos-14)	2m 58s
cargo-deny (bans licenses sources)	23s
Check protos	24s
build (windows-latest)	8m 46s
Check that MkDocs can build the docs	25s
build (ubuntu-latest, --all-features)	5m 4s
Check that MkDocs can build the docs with Poetry 1.3.2	34s
Check formatting	13s
Clippy check	2m 12s
	25m 29s

Provide feedback