README: Mention support for nsupdate

diff --git a/README b/README
index 5a95638cda604236c58608cc61c74d26fcae210b..a4b72adf128b6ab0bd0563834ea1da950a64ce9d 100644 (file)
--- a/README
+++ b/README
@@ -72,3 +72,5 @@ SUPPORTED PROVIDERS:
        udmedia.de
        variomedia.de
        zoneedit.com
+
+Also supports DNS updates via the ISC BIND nsupdate utility.