Add links to API reference and examples to README (#167)

diff --git a/README.md b/README.md
index 728827c..8a9255c 100644
--- a/README.md
+++ b/README.md
@@ -5,5 +5,7 @@
 Utilities for working with Foreign Function Interface (FFI) code, incl.
 converting between Dart strings and C strings encoded with UTF-8 and UTF-16.
 
+Please see the [API reference](https://pub.dev/documentation/ffi/latest/ffi/ffi-library.html) for more documentation and the [tests](https://github.com/dart-lang/ffi/tree/master/test) for example usage. 
+
 For additional details about Dart FFI (`dart:ffi`), see
 https://dart.dev/guides/libraries/c-interop.