run format command before build for consistency (testing-library#197)

Author: alexkrolick

netlify.toml

@@ -11,7 +11,7 @@
  publish = "website/build/testing-library-docs"
 
  # Default build command.
- command = "cd website; npm install; npm run build"
+ command = "cd website; npm install; npm run format-docs; npm run build"
 
 # React root to React landing page
 [[redirects]]