Update README.md with pnpm command and fix optional chaining in rebrand.js

Author: mayank1513

README.md

@@ -66,6 +66,8 @@ To get started, simply click on the `"Use this template"` button to create a new
 
 For detailed instructions and a checklist, please refer to [TODO.md](./TODO.md).
 
+> You can also start by running `pnpm dlx create-turbo@latest --example https://github.com/react18-tools/turborepo-template/` in command line interface.
+
 ## What's Different from Turborepo official templates?
 
 Compared to the default scaffold from create-turbo, this template offers:

scripts/rebrand.js

@@ -13,7 +13,7 @@ const [owner, repo] = execSync(
 )
   .toString()
   .trim()
-  .split("/");
+  ?.split("/") ?? ["", path.basename(path.cwd())];
 
 const packageName = isFirstRebrand ? repo : config.packageName || repo;