guide: add missing and fix incorrect testing info (#3629) #1450

Job	Run time
build_benchmarks	1m 23s
Check	2m 24s
build_nightly	2m 16s
build_examples	4m 45s
Verify that web-sys is compiled correctly	1m 31s
Clippy	7m 31s
dist_linux_aarch64_gnu	4m 10s
dist_linux_x86_64_musl	3m 57s
dist_macos_aarch64	3m 56s
dist_macos_x86_64	3m 16s
dist_windows	4m 35s
doc_api	1m 28s
doc_book	14s
Rustfmt	25s
Build and test the deno example	1m 19s
Run js-sys crate tests	3m 24s
Run native tests	2m 42s
Run wasm-bindgen crate tests with multithreading enabled	2m 0s
Test TypeScript output of wasm-bindgen	2m 34s
Run UI compile-fail tests	4m 46s
Run wasm-bindgen crate tests (unix)	10m 47s
Run web-sys crate tests	8m 44s
Run wasm-bindgen-webidl crate tests	3m 12s
test_examples	3m 10s
deploy	1m 50s
	1h 26m 19s

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