Add setup func

Signed-off-by: Miek Gieben <miek@miek.nl>

plugin/torrent/README.md

@@ -0,0 +1,48 @@
+# torrent
+
+## Name
+
+*torrent* - use BitTorrent to disseminate zone data.
+
+## Description
+
+The *torrent* plugin uses the BitTorrent protocol to disseminate zone data. Multiple peers can
+connect and down- and upload the data. A couple of nodes can be `seed` only meaning they will update
+the torrent when their zone data changes. Non-`seed` peers will write received data back into the
+zonefile - once the torrent is fully downloaded.
+
+## Syntax
+
+The simplest syntax is for a peer wanting to receive the zone data:
+
+~~~ txt
+torrent DBFILE
+~~~
+
+*  **DBFILE** the zone database file to torrent. If the path is relative, the path from the
+   *root* plugin will be prepended to it.
+
+For peers seeding the torrent use this, slightly expanded, syntax
+
+~~~ txt
+torrent DBFILE {
+    seed
+}
+~~~
+
+* `seed` tells *torrent* to seed content from **DBFILE** to the peers, it will _never_ write to
+  **DBFILE**. When `seed` is _not_ specified **DBFILE** will be written to once the entire torrent
+  is downloaded.
+
+## Examples
+
+~~~ txt
+example.org {
+    file db.example.org
+    torrent db.example.org
+}
+~~~
+
+## Also See
+
+## Bugs