docs: more wording tweaks and also added a See Also section.
docs: more wording tweaks and also added a See Also section.

openresty/sregex,openresty/sregex,MarginC/sregex,MarginC/sregex,openresty/sregex,MarginC/sregex,MarginC/sregex,openresty/sregex,MarginC/sregex