fix readme vercel link

README.md

@@ -7,7 +7,7 @@ This Astro starter project fully integrates with dynamic sample content from you
 [View our live demo hosted at Vercel](https://astro-starter-buttercms.vercel.app/), or you can click a button below to deploy your own copy of our starter
 project to the provider of your choice.
 
-[![Deploy with Vercel](https://vercel.com/button)](https://vercel.com/new/clone?repository-url=https://github.com/ButterCMS/astro-starter-buttercms&env=ASTRO_APP_BUTTER_CMS_API_KEY&envDescription=Your%20ButterCMS%20API%20Token&envLink=https://buttercms.com/settings/&project-name=astro-starter-buttercms&repo-name=astro-starter-buttercms&redirect-url=https://buttercms.com/onboarding/vercel-starter-deploy-callback/&production-deploy-hook=Deploy%20Triggered%20from%20ButterCMS&demo-title=ButterCMS%20Astro%20Starter&demo-description=Fully%20integrated%20with%20your%20ButterCMS%20account&demo-url=https://astro-starter-buttercms-demo.vercel.app/&demo-image=https://cdn.buttercms.com/r0tGK8xFRti2iRKBJ0eY&repository-name=astro-starter-buttercms)
+[![Deploy with Vercel](https://vercel.com/button)](https://vercel.com/new/clone?repository-url=https://github.com/ButterCMS/astro-starter-buttercms&env=ASTRO_APP_BUTTER_CMS_API_KEY&envDescription=Your%20ButterCMS%20API%20Token&envLink=https://buttercms.com/settings/&project-name=astro-starter-buttercms&repo-name=astro-starter-buttercms&redirect-url=https://buttercms.com/onboarding/vercel-starter-deploy-callback/&production-deploy-hook=Deploy%20Triggered%20from%20ButterCMS&demo-title=ButterCMS%20Astro%20Starter&demo-description=Fully%20integrated%20with%20your%20ButterCMS%20account&demo-url=https://astro-starter-buttercms.vercel.app/&demo-image=https://cdn.buttercms.com/r0tGK8xFRti2iRKBJ0eY&repository-name=astro-starter-buttercms)