fix(package): user repository shorthand

Author: gr2m

lib/create-package-json.js

@@ -18,7 +18,7 @@ async function createPackageJson(answers) {
       pretest: "npm run -s lint",
       test: "jest --coverage",
     },
-    repository: `https://github.com/${answers.repository}`,
+    repository: `github:${answers.repository}`,
     keywords: ["github", "api", "sdk", "toolkit"],
     author: answers.packageAuthor,
     license: "MIT",