Merge pull request #256 from haburibe/master

Fix minor typo: appengine/ndb/modeling/README.md

Author: Jon Wayne Parrott

appengine/ndb/modeling/README.md

@@ -1,5 +1,5 @@
 ## App Engine Datastore NDB Modeling Samples
 
-These samples demonstrate how to [model entity relationships](https://cloud.google.com/appengine/articles/modeling]) using the Datastore NDB library.
+These samples demonstrate how to [model entity relationships](https://cloud.google.com/appengine/articles/modeling) using the Datastore NDB library.
 
 Refer to the [App Engine Samples README](../../README.md) for information on how to run and deploy this sample.