Updated documentation comments #419

Job	Run time
analyze; PKGS: acyclic_steps, canonical_json, chunked_stream, http_methods, neat_cache, neat_peri...	43s
mono_repo self validate	18s
analyze; PKGS: acyclic_steps, canonical_json, chunked_stream, http_methods, neat_cache, neat_peri...	47s
tests; PKG: canonical_json; `dart test`	23s
tests; PKG: acyclic_steps; `dart test`	24s
tests; PKG: chunked_stream; `dart test`	29s
tests; PKG: http_methods; `dart test`	22s
tests; PKG: neat_periodic_task; `dart test`	34s
tests; PKG: pem; `dart test`	28s
tests; PKG: retry; `dart test`	28s
tests; PKG: sanitize_html; `dart test`	24s
tests; PKG: safe_url_check; `dart test`	26s
tests; PKG: vendor; `dart test`	32s
tests; PKG: slugid; `dart test`	24s
tests; PKG: neat_cache; `dart test -x redis`	45s
	7m 27s

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