feature: domain-rule, conf-file support group, add group-begin and gr…

…oup-end

etc/smartdns/smartdns.conf

@@ -13,9 +13,10 @@
 # user nobody
 #
 
-# Include another configuration options
-# conf-file [file]
+# Include another configuration options, if -group is specified, only include the rules to specified group.
+# conf-file [file] [-group group-name]
 # conf-file blacklist-ip.conf
+# conf-file whitelist-ip.conf -group office
 # conf-file *.conf
 
 # dns server bind ip and port, default dns server port is 53, support binding multi ip and port
@@ -46,6 +47,7 @@
 # -force-aaaa-soa: force AAAA query return SOA.
 # -force-https-soa: force HTTPS query return SOA.
 # -no-serve-expired: no serve expired.
+# -no-rules: skip all rules.
 # -ipset ipsetname: use ipset rule.
 # -nftset nftsetname: use nftset rule.
 # example: 
@@ -334,6 +336,7 @@ log-level info
 # [-p] -ipset [ipset|-]: same as ipset option
 # [-t] -nftset [nftset|-]: same as nftset option
 # [-d] -dualstack-ip-selection [yes|no]: same as dualstack-ip-selection option
+# [-g|-group group-name]: set domain-rules to group.
 # -no-serve-expired: ignore expired domain
 # -delete: delete domain rule
 # -no-ip-alias: ignore ip alias