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/root.go

@@ -8,9 +8,9 @@ import (
 )
 
 var rootCmd = &cobra.Command{
-	Use:   "keystone",
-	Short: "Keystone is a CLI tool for bootstrapping Go APIs",
-	Long:  `Keystone is a CLI tool built by LKResuts for internal usage to bootstrap Go APIs`,
+	Use:   "draft",
+	Short: "Draft is a CLI tool for bootstrapping Go APIs",
+	Long:  `Draft is a CLI tool built by LKResuts for internal usage to bootstrap Go APIs`,
 }
 
 func Execute() {