Rust

Update katex-header.html #371

Job	Run time
build-wasm-nostd	28s
build-wasm	4m 27s
check	29s
check-all	46s
check-alloc	21s
check-changelog	3s
check-doc	50s
check-nostd	24s
check-semver (generic-ec, all-features)	2m 38s
clippy	35s
clippy-nostd	26s
check-semver (generic-ec, only-explicit-features)	2m 29s
clippy-tests	45s
check-semver (generic-ec-core, all-features)	2m 32s
check-semver (generic-ec-core, only-explicit-features)	2m 44s
fmt	5s
test	1m 13s
check-semver (generic-ec-curves, all-features)	2m 46s
check-semver (generic-ec-curves, only-explicit-features)	2m 28s
check-semver (generic-ec-zkp, all-features)	2m 32s
check-semver (generic-ec-zkp, only-explicit-features)	2m 29s
	31m 30s

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