fix description in traits.rs #2374

Job	Run time
Build Benchmarks	1m 2s
Build [debug feature]	38s
Build Benchmarks (w/ yoga)	1m 15s
Build Examples	1m 5s
MSRV Build [Rust 1.65]	1m 53s
Clippy	1m 20s
Documentation	53s
Test Fixture Formatting	36s
Rustfmt	13s
Markdown Lint	5s
Test Suite [alloc + all algorithms]	1m 39s
Test Suite [std + block)]	1m 37s
Test Suite [default features]	1m 40s
Test Suite [default except content_size]	1m 35s
Test Suite [default + serde]	1m 44s
Test Suite [std + flexbox]	1m 46s
Test Suite [std + grid]	1m 34s
Test Suite [alloc + no algorithms]	1m 40s
Test Suite [std (no algorithms)]	1m 35s
Test Suite [no features]	1m 44s
	25m 34s

Provide feedback