Merge fort-nix/nix-bitcoin#454: lnd: point out SCB functionality more clearly

b8524720a5 lnd: point out SCB functionality more clearly (nixbitcoin)

Pull request description:

ACKs for top commit:
  jonasnick:
    ACK b8524720a5

Tree-SHA512: 0cb9afe8bcb8af2ed72ddb471bd8a1a8dea78248065c5fb59c88a24cd64a0ee2469abe51e0798700011e8fd8a5621379ac42100d89fa7573e1f3ba8cd237e573

README.md

@@ -72,7 +72,7 @@ NixOS modules ([src](modules/modules.nix))
     * [rebalance](https://github.com/lightningd/plugins/tree/master/rebalance): keeps your channels balanced
     * [summary](https://github.com/lightningd/plugins/tree/master/summary): print a nice summary of the node status
     * [zmq](https://github.com/lightningd/plugins/tree/master/zmq): publishes notifications via ZeroMQ to configured endpoints
-  * [lnd](https://github.com/lightningnetwork/lnd) with support for announcing an onion service
+  * [lnd](https://github.com/lightningnetwork/lnd) with support for announcing an onion service and [static channel backups](https://github.com/lightningnetwork/lnd/blob/master/docs/recovery.md)
     * [Lightning Loop](https://github.com/lightninglabs/loop)
     * [Lightning Pool](https://github.com/lightninglabs/pool)
     * [charge-lnd](https://github.com/accumulator/charge-lnd): policy-based channel fee manager

examples/configuration.nix

@@ -83,6 +83,8 @@
   # You should also backup your channel state after opening new channels.
   # This will allow you to recover off-chain funds, by force-closing channels.
   #   scp bitcoin-node:/var/lib/lnd/chain/bitcoin/mainnet/channel.backup ./backups/lnd/
+  #
+  # Alternatively, you can have these files backed up by services.backups below.
 
   ### RIDE THE LIGHTNING
   # Set this to enable RTL, a web interface for lnd and clightning.