Guides can now be found in search, and llms.txt lists every page

The Getting Started pages and the best practice guides were hidden from search engines. They can now be indexed, so a search for a Yotpo integration topic can lead straight to the right guide.

llms.txt now lists every guide and reference page, with each endpoint's method and full URL, plus key facts about authentication, tokens, pagination and webhooks. Point Cursor, Claude or another AI assistant at it to build against the App Developer API.