This commit updates the link for Automatic Static Optimization page in the Documentation
* s/Automatic Prerendering/Automatic Static Optimization/ * Update more links
* Add warning when empty object is returned from getInitialProps * Apply suggestions from code review Co-Authored-By: Joe Haddad <joe.haddad@zeit.co> * Apply suggestions from code review Co-Authored-By: Jan Potoms <potoms.jan@gmail.com>