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

content/en/6.recycled/3.alternatives/2.qbittorrent for plex.md

@@ -189,7 +189,7 @@ Detailed info:
 | `ID`       | Qbittorrent UI login username | `user` |
 | `PW`       | Qbittorrent UI password | `password` |
 
-### Done !
+### Done!
 ::
 
 ## Deployment
@@ -215,7 +215,7 @@ __If login fails:__ check your firewall rules.
 
 Change your username and password in the "webui" settings.
 
-### Done !
+### Done!
 ::
 
 You're done! In Qbittorrent settings, under "Downloads", set `/media/downloads` as the default folder.
@@ -336,7 +336,7 @@ 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 go to `https://seedbox.mydomain.com`. You should land on the Qbittorrent interface.