[ffigen] Update README.md (#9)

pkgs/ffigen/README.md

diff --git a/pkgs/ffigen/README.md b/pkgs/ffigen/README.md
index 3c01787..41a9d58 100644
--- a/pkgs/ffigen/README.md
+++ b/pkgs/ffigen/README.md
@@ -1,4 +1,4 @@
 [![Build Status](https://travis-ci.org/dart-lang/ffigen.svg?branch=master)](https://travis-ci.org/dart-lang/ffigen)
 
-Experimental generator for [FFI](https://dart.dev/guides/libraries/c-interop)
+Experimental binding generator for [FFI](https://dart.dev/guides/libraries/c-interop)
 bindings.