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

content/en/3.serveex/6.cloud/2.nextcloud.md

@@ -76,7 +76,7 @@ PORT=4545
 
 Deploy the stack and visit `http://yourserverip:4545` to complete the setup.
 
-### Done !
+### Done!
 ::
 
 ::caution
@@ -197,7 +197,7 @@ server {
 
 Press :kbd{value="Ctrl+O"}, then :kbd{value="Enter"} to save, and :kbd{value="Ctrl+X"} to exit.
 
-### Done !
+### Done!
 ::
 
 That’s it! You’ve exposed Nextcloud! Don’t forget to install [the desktop and mobile apps](https://nextcloud.com/install/).
@@ -230,7 +230,7 @@ In Nextcloud, go to _Administration > OpenID Connect_, click the `+` button, and
 | Discovery endpoint | Pocket ID's OIDC discovery URL |
 | Scope | `openid email profile groups` |
 
-### Done !
+### Done!
 ::
 
 ::tip{icon="" to="/serveex/advanced/authentik"}