Update DoH.list

Author: mili-tan

List/DoH.list

@@ -9,6 +9,7 @@ https://dns.twnic.tw/dns-query ,TWNIC-Quad101
 https://private.canadianshield.cira.ca/dns-query ,CIRA-CanadianShield 
 https://dns.adguard.com/dns-query ,AdGuard
 https://doh.pub/dns-query ,Tencent-DNSPod-D+
+https://120.53.53.53/dns-query ,Tencent-DNSPod-D+
 https://223.5.5.5/dns-query ,Alidns
 https://public.dns.iij.jp/dns-query ,IIJ-PublicDNS
 https://neatdns.ustclug.org/resolve ,USTC-LUG