recommend updating the leader last

Author: tgross

website/content/docs/upgrade/upgrade-specific.mdx

@@ -1009,7 +1009,9 @@ before rolling the upgrade forward to the next server. It's also possible to
 stand up a new set of servers, and then slowly stand down each of the older
 servers in a similar fashion.
 
-For in-place raft protocol upgrades, perform the following for each server:
+For in-place raft protocol upgrades, perform the following for each
+server, leaving the leader until last to reduce the chance of leader
+elections that will slow down the process:
 
 * Stop the server
 * Run `nomad server force-leave $server_name`