Fix Done! spacing site-wide, and EN-only content errors (Docker/Linux mixup, missing spaces, ProloNAS pun explanation)

content/en/6.recycled/3.alternatives/1.plex.md

@@ -142,7 +142,7 @@ Tautulli is accessible at `http://yourserverip:8181`.
 You must be on your local network during Plex's initial setup. Otherwise, the URL will redirect to your Plex account without detecting your server. A VPN won't help. If you have no choice, **you can handle the setup remotely via SSH tunnel**.
 ::
 
-### Done !
+### Done!
 ::
 
 ## Configure Plex
@@ -312,7 +312,7 @@ server {
 
 Press :kbd{value="Ctrl+O"}, then :kbd{value="Enter"} to save, and :kbd{value="Ctrl+X"} to exit.
 
-### Done !
+### Done!
 ::
 
 Wait a few minutes, then open `http://tautulli.mydomain.com` in your browser.