DOC: config: mention the missing "quic4@" and "quic6@" in protocol prefixes
These two variants were missing from the section on protocol prefixes.
diff --git a/doc/configuration.txt b/doc/configuration.txt
index e5edd83..3054029 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -24095,6 +24095,20 @@
11.3 Protocol prefixes
----------------------
+'quic4@<address>[:port1[-port2]]' following <address> is always considered as
+ an IPv4 address but socket type is forced to
+ "datagram" and the transport method is forced
+ to "stream". Depending on the statement using
+ this address, a UDP port or port range can or
+ must be specified.
+
+'quic6@<address>[:port1[-port2]]' following <address> is always considered as
+ an IPv6 address but socket type is forced to
+ "datagram" and the transport method is forced
+ to "stream". Depending on the statement using
+ this address, a UDP port or port range can or
+ must be specified.
+
'tcp@<address>[:port1[-port2]]' following <address> is considered as an IPv4
or IPv6 address depending of the syntax but
socket type and transport method is forced to