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

content/en/3.serveex/91.advanced/2.arcane.md

@@ -142,7 +142,7 @@ PGID=1000
 
 Deploy the stack. The local interface is available at `http://yourserverip:3552`.
 
-### Done !
+### Done!
 ::
 
 ::caution
@@ -240,7 +240,7 @@ Arcane's live updates run over a websocket, hence the `Upgrade`/`Connection` hea
 
 Press :kbd{value="Ctrl+O"}, then :kbd{value="Enter"} to save, and :kbd{value="Ctrl+X"} to exit.
 
-### Done !
+### Done!
 ::
 
 That's it! Arcane is now accessible from the internet.
@@ -290,7 +290,7 @@ Deploy the stack.
 
 Back in Arcane, the new environment should show as connected within a few seconds. Switch to it from the environment picker to manage that host's containers and stacks.
 
-### Done !
+### Done!
 ::
 
 ## Connecting Pocket ID
@@ -330,7 +330,7 @@ Redeploy the stack.
 ✨ To skip straight to Pocket ID and hide the local login form, set `OIDC_AUTO_REDIRECT_TO_PROVIDER=true`, or disable local login entirely under _Settings > Authentication_ for OIDC-only access.
 ::
 
-### Done !
+### Done!
 ::
 
 That's it! Arcane now offers a "Login with Pocket ID" option alongside the local login form.