removed obsolete reference to api.html
diff --git a/README.md b/README.md
index 91e0ce4..ab1d05e 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,6 @@ release its source code.
* Archives: <http://librelist.com/browser/libgit2/>
* Website: <http://libgit2.github.com>
* API documentation: <http://libgit2.github.com/libgit2>
-* Usage guide: <http://libgit2.github.com/api.html>
What It Can Do
==================================