docs: mentioned the ngx_replace_filter module that uses this library.
docs: mentioned the ngx_replace_filter module that uses this library.

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