doc: add comments in config files to help users

Adding comment in config file help users to edit it without having to
keep documentation opened on side.

Change-Id: If58dd43dd6c5ac5dbb4209881fb4c14bd0d88e78
diff --git a/tools/dvpn/dvpn.yaml b/tools/dvpn/dvpn.yaml
index 5a3b155..7df7f53 100644
--- a/tools/dvpn/dvpn.yaml
+++ b/tools/dvpn/dvpn.yaml
@@ -1,9 +1,28 @@
+# The bootstrap node serves as the entry point to the DHT network.
+# By default, bootstrap.jami.net is configured for the public DHT network and should be used for personal use only.
+# For production environments, it is recommended to set up your own bootstrap node to establish your own DHT network.
+# Documentation: https://docs.jami.net/en_US/user/lan-only.html#boostraping
 bootstrap: "bootstrap.jami.net"
+
+# TURN server is used as a fallback for connections if the NAT block all possible connections.
+# By default is turn.jami.net (which uses coturn) but can be any TURN.
+# Developer must set up their own TURN server.
+# Documentation: https://docs.jami.net/en_US/developer/going-further/setting-up-your-own-turn-server.html
 turn_host: "turn.jami.net"
 turn_user: "ring"
 turn_pass: "ring"
 turn_realm: "ring"
-# configuration_file: "HOME/dhtnet/tools/dvpn/dvpn.yaml" # Change this to the path of the dvpn.yaml file
-# certificate: /path/to/certificate
-# privateKey: /path/to/privateKey
+
+# On server, identities are saved in /etc/dhtnet/id/
+# On client, they are generaly saved in ~/.dnc/
+#certificate: "to/your/certificate.crt"
+#privateKey: "to/your/privatekey.pem"
+
+
+##########################
+### For Server Use Only ##
+##########################
+
+# When anonymous is set to true, the server accepts any connection without checking CA
+# When anonymous is set to false, the server allows only connection which are issued by the same CA as the server
 anonymous: false
\ No newline at end of file