[phodav: 2/3] Document chezdav --no-mdns

[Marc-André Lureau <malureau src gnome org>]

commit 8507734d4346008379f94a1a0259163eb54ab24b
Author: Daniel Aleksandersen <code daniel priv no>
Date:   Sun Dec 26 16:49:27 2021 +0100

    Document chezdav --no-mdns

 doc/chezdav.txt | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/doc/chezdav.txt b/doc/chezdav.txt
index a85b73d..808e04f 100644
--- a/doc/chezdav.txt
+++ b/doc/chezdav.txt
@@ -36,6 +36,10 @@ OPTIONS
 *--public::
     Listen on all network interfaces.
 
+*--no-mdns::
+    Don't broadcast the share on the local network. By default, shares
+    are broadcast with mDNS/DNS-SD (when compiled with Avahi).
+
 *-d, --htdigest*=PATH::
     Path to a htdigest file, to secure the server with DIGEST
     authentication.