Update index.md

Author: gaearon

beta/src/content/index.md

@@ -18,8 +18,8 @@ This beta website contains the current draft of the new docs.
 
 ## How much content is ready? {/*how-much-content-is-ready*/}
 
-* [Learn React](/learn): ~95% finished.
-* [API Reference](/apis): ~85% finished.
+* [Learn React](/learn): ~99% finished.
+* [API Reference](/apis): ~95% finished.
 
 You can track our progress [on GitHub.](https://github.com/reactjs/reactjs.org/issues/3308)