docs: further server docs [ci skip]

cli/server/add.go

@@ -42,7 +42,7 @@ var provisionFlag = &cli.BoolFlag{
 
 var traefik bool
 var traefikFlag = &cli.BoolFlag{
-	Name:        "traefi",
+	Name:        "traefik",
 	Aliases:     []string{"t"},
 	Value:       false,
 	Usage:       "Deploy traefik",
@@ -242,7 +242,7 @@ func deployTraefik(c *cli.Context, cl *dockerClient.Client, domainName string) e
 
 var serverAddCommand = &cli.Command{
 	Name:  "add",
-	Usage: "Add a server to your Abra configuration",
+	Usage: "Add a server to your configuration",
 	Description: `
 This command adds a new server to your configuration so that it can be managed
 by Abra.

cli/server/remove.go

@@ -28,7 +28,7 @@ func rmHetznerCloudVPS(c *cli.Context) error {
 var serverRemoveCommand = &cli.Command{
 	Name:    "remove",
 	Aliases: []string{"rm"},
-	Usage:   "Remove a server",
+	Usage:   "Remove a managed server",
 	Description: `
 This command removes a server from being managed by Abra.
 

cli/server/server.go

@@ -11,8 +11,15 @@ var ServerCommand = &cli.Command{
 	Usage:   "Manage servers via 3rd party providers",
 	Description: `
 These commands support creating and managing servers using 3rd party
-integrations. Servers can be provisioned from scratch so that they are capable
-of hosing Co-op Cloud apps.
+integrations. 
+
+Servers can be created and provisioned from scratch so that they are capable of
+hosing Co-op Cloud apps. This can be achieved by using the "abra server new"
+command.
+
+If you already have a server, you can add it to your configuration using "abra
+server add". Abra can provision existing servers also, see available flags on
+"server add" for more.
 `,
 	Subcommands: []*cli.Command{
 		serverNewCommand,