docs: short aliases [ci skip]

cli/server/remove.go

@@ -10,9 +10,13 @@ import (
 )
 
 var serverRemoveCommand = &cli.Command{
-	Name:     "remove",
-	Aliases:  []string{"rm", "delete"},
-	Usage:    "Remove a locally-defined server",
+	Name:    "remove",
+	Aliases: []string{"rm"},
+	Usage:   "Remove a server",
+	Description: `
+This does not destroy the actual server. It simply removes it from Abra
+internal bookkeeping so that it is not managed any more.
+`,
 	HideHelp: true,
 	Action: func(c *cli.Context) error {
 		server := c.Args().First()