docs: fix typo in watchtower document and code comment [skip ci]

docs/watchtower.md

@@ -51,7 +51,8 @@ Retrieving information about your tower’s configurations can be done using
         "listeners": [
                 "[::]:9911"
         ],
-        "uris": null,
+        "uris": [
+        ],
 }
 ```
 
@@ -59,7 +60,7 @@ The entire set of watchtower configuration options can be found using
 `lnd -h`:
 
 ```shell
-⛰  lncli -h
+⛰  lnd -h
 ...
 watchtower:
       --watchtower.active                                     If the watchtower should be active or not

watchtower/wtwire/state_update.go

@@ -4,7 +4,7 @@ import "io"
 
 // StateUpdate transmits an encrypted state update from the client to the
 // watchtower. Each state update is tied to particular session, identified by
-// the client's brontine key used to make the request.
+// the client's brontide key used to make the request.
 type StateUpdate struct {
 	// SeqNum is a 1-indexed, monotonically incrementing sequence number.
 	// This number represents to the client's expected sequence number when