new license in the README file (#189)

New license in the README file.
diff --git a/README.md b/README.md
index 7b8bd86..1884de6 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,7 @@
 License
 -------
 
-The yaml package is licensed under the LGPL with an exception that allows it to be linked statically. Please see the LICENSE file for details.
+The yaml package is licensed under the Apache License 2.0. Please see the LICENSE file for details.
 
 
 Example