docs: improve visibility for CPU & GPU instances

cmd/scw/testdata/test-all-usage-instance-usage.golden

@@ -1,6 +1,6 @@
 🎲🎲🎲 EXIT CODE: 0 🎲🎲🎲
 🟥🟥🟥 STDERR️️ 🟥🟥🟥️
-This API allows you to manage your Instances.
+This API allows you to manage your CPU and GPU Instances.
 
 USAGE:
   scw instance <command>

cmd/scw/testdata/test-main-usage-usage.golden

@@ -12,7 +12,7 @@ BAREMETAL COMMANDS:
   fip           This API allows you to manage your Elastic Metal servers' flexible public IP addresses
 
 COMPUTE COMMANDS:
-  instance      This API allows you to manage your Instances
+  instance      This API allows you to manage your CPU and GPU Instances
   marketplace   This API allows you to find available images for use when launching a Scaleway Instance
 
 CONFIGURATION COMMANDS:

docs/commands/instance.md

@@ -1,6 +1,6 @@
 <!-- DO NOT EDIT: this file is automatically generated using scw-doc-gen -->
 # Documentation for `scw instance`
-This API allows you to manage your Instances.
+This API allows you to manage your CPU and GPU Instances.
 
 - [Image management commands](#image-management-commands)
   - [Create an Instance image](#create-an-instance-image)

internal/namespaces/instance/v1/instance_cli.go

@@ -96,8 +96,8 @@ func GetGeneratedCommands() *core.Commands {
 }
 func instanceRoot() *core.Command {
 	return &core.Command{
-		Short:     `This API allows you to manage your Instances`,
-		Long:      `This API allows you to manage your Instances.`,
+		Short:     `This API allows you to manage your CPU and GPU Instances`,
+		Long:      `This API allows you to manage your CPU and GPU Instances.`,
 		Namespace: "instance",
 	}
 }