chore: rename keystone to draft

Rename the module, CLI command name, and all references from
keystone/basalt to draft, and fix the stale build/README content
found along the way.

cmd/new.go

@@ -4,7 +4,7 @@ import (
 	"github.com/spf13/cobra"
 )
 
-const oldModuleName = "github.com/FernandoJVideira/simple_bank"
+const oldModuleName = "github.com/FernandoJVideira/api_tmpl"
 const srcDir = "embedded/api_tmpl"
 
 type MainTemplateData struct {
@@ -18,7 +18,7 @@ func init() {
 
 var newCmd = &cobra.Command{
 	Use:   "new",
-	Short: "Create a new Keystone project",
-	Long:  `Create a new Keystone project with the necessary structure and files.`,
+	Short: "Create a new Draft project",
+	Long:  `Create a new Draft project with the necessary structure and files.`,
 	Run:   genProject,
 }