docs: fix formatting of command permission for /world unload

Author: NonSwag

content/docs/worlds/manage/command-permissions.mdx

@@ -22,4 +22,4 @@ title: Command permissions
 | /world setspawn    | worlds.command.setspawn    |
 | /world spawn       | worlds.command.spawn       |
 | /world teleport    | worlds.command.teleport    |
-| /world unload      | `worlds.command.unload`    |
+| /world unload      | worlds.command.unload      |