Merge pull request #626 from lightninglabs/docs-lnd

Update lnd documentation

docs/lnd/release-notes/release-notes-0.18.0.md

@@ -167,6 +167,9 @@
   `lnd.conf`](https://github.com/lightningnetwork/lnd/pull/8310)
   for the `rpcuser` and `rpcpass` fields to better protect the secrets.
 
+* When computing a minimum fee for transaction construction, `lnd` [now takes our
+bitcoin peers' feefilter values into account](https://github.com/lightningnetwork/lnd/pull/8418).
+
 ## RPC Additions
 
 * [Deprecated](https://github.com/lightningnetwork/lnd/pull/7175)
@@ -237,6 +240,10 @@
   callbacks](https://github.com/lightningnetwork/lnd/pull/8504) which will
   execute whenever a healthcheck succeeds/fails.
 
+* `PublishTransaction` now [returns the error
+  types](https://github.com/lightningnetwork/lnd/pull/8554) defined in
+  `btcd/rpcclient`.
+
 ### Logging
 * [Add the htlc amount](https://github.com/lightningnetwork/lnd/pull/8156) to
   contract court logs in case of timed-out HTLCs in order to easily spot dust