fix(create-app): support github url has trailing slash

packages/create-next-app/helpers/examples.ts

@@ -25,9 +25,15 @@ export async function getRepoInfo(
   const [, username, name, t, _branch, ...file] = url.pathname.split('/')
   const filePath = examplePath ? examplePath.replace(/^\//, '') : file.join('/')
 
-  // Support repos whose entire purpose is to be a NextJS example, e.g.
-  // https://github.com/:username/:my-cool-nextjs-example-repo-name.
-  if (t === undefined) {
+  if (
+    // Support repos whose entire purpose is to be a NextJS example, e.g.
+    // https://github.com/:username/:my-cool-nextjs-example-repo-name.
+    t === undefined ||
+    // Support GitHub URL that ends with a trailing slash, e.g.
+    // https://github.com/:username/:my-cool-nextjs-example-repo-name/
+    // In this case "t" will be an empty string while the next part "_branch" will be undefined
+    (t === '' && _branch === undefined)
+  ) {
     const infoResponse = await got(
       `https://api.github.com/repos/${username}/${name}`
     ).catch((e) => e)