* Added sync env vars docs example
* Added links in the config + deploy files
* Updated copy
* Added vercel docs cards and added them to all of the relevant docs pages
* Added sync env vars to the intro page
* Added automatically sync env vars section to nextjs guide
* Added ‘Manually’
* Removed code block and updated title
* updated formatting and added vercelsyncenvvars to the config file
* Added missing comment
* Updated imports to /core
* Added sync env var docs link and note
* Improved the VERCEL_ACCESS_TOKEN note
* Added link to vercel
* Updated docs and improved formatting
* Copy tweaks
* Added space
* Updated deploy docs