Add Feature "prebuilt-nasm"; Update documentation #869

Job	Run time
apidiff (aws-lc-sys, branch)	3m 39s
apidiff (aws-lc-sys, published)	3m 3s
apidiff (aws-lc-fips-sys, branch)	3m 15s
apidiff (aws-lc-fips-sys, published)	3m 26s
apidiff (aws-lc-rs, branch)	2m 59s
apidiff (aws-lc-rs, published)	2m 57s
bindgen-dependency (ubuntu-latest)	27s
bindgen-dependency (macos-12)	2m 22s
bindgen-fips-dependency (ubuntu-latest)	25s
bindgen-dependency (macos-13-xlarge)	36s
bindgen-fips-dependency (macos-12)	56s
bindgen-dependency (windows-latest)	2m 47s
bindgen-fips-dependency (macos-13-xlarge)	38s
bindgen-fips-dependency (windows-latest)	3m 11s
clippy (aws-lc-rs, --features bindgen,unstable)	2m 3s
copyright	3s
clippy (aws-lc-rs, --features bindgen,unstable,fips)	2m 22s
clippy (aws-lc-rs, --no-default-features --features aws-lc-sys)	4m 41s
dependency-review	2m 8s
metadata-checks	39s
Resolve the dependencies to the minimum SemVer version	1m 8s
mirai-analysis	4m 14s
rustfmt	2m 15s
semver-checks	4m 37s
udeps	7m 19s
	1h 2m 10s

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