Merge pull request #888 from evtuhovich/master

Fix ambiguity in server start

website/source/docs/guides/servers.html.markdown

@@ -21,7 +21,7 @@ to first add the new nodes and then remove the old nodes.
 ## Adding New Servers
 
 Adding new servers is generally straightforward. Simply start the new
-server with the `-server` flag. At this point, the server will not be a member of
+agent with the `-server` flag. At this point, the server will not be a member of
 any cluster, and should emit something like:
 
 ```text