update docs for upcoming custom response header changes for dnsdist

diff --git a/pdns/dnsdistdist/docs/reference/config.rst b/pdns/dnsdistdist/docs/reference/config.rst
index 25a40862dc1aebbf69207dee54d285ef8d08cde6..87564cc19344367db8508298b1400c2677335765 100644 (file)
--- a/pdns/dnsdistdist/docs/reference/config.rst
+++ b/pdns/dnsdistdist/docs/reference/config.rst
@@ -126,6 +126,7 @@ Listen Sockets
   * ``ciphers``: str - The TLS ciphers to use, in OpenSSL format. Ciphers for TLS 1.3 must be specified via ``ciphersTLS13``.
   * ``ciphersTLS13``: str - The TLS ciphers to use for TLS 1.3, in OpenSSL format.
   * ``serverTokens``: str - The content of the Server: HTTP header returned by dnsdist. The default is "h2o/dnsdist".
+  * ``customResponseHeaders={}``: table - Set custom HTTP header(s) returned by dnsdist.
 
 .. function:: addTLSLocal(address, certFile(s), keyFile(s) [, options])