[docs] Remove dct-ru2 resolver

Author: d3cim

README.md

@@ -25,7 +25,7 @@ All the binary files are downloaded from the [official release page](https://git
 
 ## Differences from the main project
 
-- `server_names` = `acsacsar-ams-ipv4` [NLD], `altername` [RUS], `ams-dnscrypt-nl` [NLD], `bcn-dnscrypt` [ESP], `d0wn-tz-ns1` [TZA], `dct-at1` [AUS], `dct-de1` [DEU], `dct-ru1` [RUS], `dct-ru2` [RUS], `dns.digitalsize.net` [DEU], `dns.watch` [DEU], `dnscrypt.be` [BEL], `dnscrypt.ca-1` [CAN], `dnscrypt.ca-2` [CAN], `dnscrypt.eu-nl` [NLD], `dnscrypt.pl` [POL], `dnscrypt.uk-ipv4` [GBR], `dnswarden-asia-uncensor-dcv4` [SGP], `dnswarden-eu-uncensor-dcv4` [DEU], `dnswarden-us-uncensor-dcv4` [USA], `gombadi-syd` [AUS], `meganerd` [NLD], `moulticast-ca-ipv4` [CAN], `moulticast-de-ipv4` [DEU], `moulticast-fr-ipv4` [FRA], `moulticast-sg-ipv4` [SGP], `moulticast-uk-ipv4` [GBR], `plan9-dns` [USA], `plan9-ns2` [USA], `pryv8boi` [DEU], `pwoss.org-dnscrypt` [DEU], `resolver4.dns.openinternet.io` [USA], `scaleway-ams` [NLD], `scaleway-fr` [FRA], `serbica` [NLD], `v.dnscrypt.uk-ipv4` [GBR] are the resolvers in use.
+- `server_names` = `acsacsar-ams-ipv4` [NLD], `altername` [RUS], `ams-dnscrypt-nl` [NLD], `bcn-dnscrypt` [ESP], `d0wn-tz-ns1` [TZA], `dct-at1` [AUS], `dct-de1` [DEU], `dct-ru1` [RUS], `dns.digitalsize.net` [DEU], `dns.watch` [DEU], `dnscrypt.be` [BEL], `dnscrypt.ca-1` [CAN], `dnscrypt.ca-2` [CAN], `dnscrypt.eu-nl` [NLD], `dnscrypt.pl` [POL], `dnscrypt.uk-ipv4` [GBR], `dnswarden-asia-uncensor-dcv4` [SGP], `dnswarden-eu-uncensor-dcv4` [DEU], `dnswarden-us-uncensor-dcv4` [USA], `gombadi-syd` [AUS], `meganerd` [NLD], `moulticast-ca-ipv4` [CAN], `moulticast-de-ipv4` [DEU], `moulticast-fr-ipv4` [FRA], `moulticast-sg-ipv4` [SGP], `moulticast-uk-ipv4` [GBR], `plan9-dns` [USA], `plan9-ns2` [USA], `pryv8boi` [DEU], `pwoss.org-dnscrypt` [DEU], `resolver4.dns.openinternet.io` [USA], `scaleway-ams` [NLD], `scaleway-fr` [FRA], `serbica` [NLD], `v.dnscrypt.uk-ipv4` [GBR] are the resolvers in use.
 
 - `doh_servers = false` (disable servers implementing the `DNS-over-HTTPS` protocol)