docs: pass on sub-command help

cli/server/add.go

@@ -94,7 +94,7 @@ func createServerDir(name string) (bool, error) {
 var serverAddCommand = cli.Command{
 	Name:    "add",
 	Aliases: []string{"a"},
-	Usage:   "Add a server to your configuration",
+	Usage:   "Add a new server to your configuration",
 	Description: `
 Add a new server to your configuration so that it can be managed by Abra.
 
@@ -121,8 +121,7 @@ You can also pass "--no-domain-checks/-D" flag to use any arbitrary name
 instead of a real domain. The host will be resolved with the "Hostname" entry
 of your ~/.ssh/config. Checks for a valid online domain will be skipped:
 
-  abra server add -D example
-`,
+  abra server add -D example`,
 	Flags: []cli.Flag{
 		internal.DebugFlag,
 		internal.NoInputFlag,