adding Apache v2.0 license

[otf:9421]

Author: srajko

README.md

@@ -28,4 +28,20 @@ or Web.config files.
 If you'd rather not work with your live OnTime data while experimenting with the API, you can sign up for a
 trial account on http://www.ontimenow.com/.
 
-[api_docs_getting_started]: http://developer.ontimenow.com/get-started
+[api_docs_getting_started]: http://developer.ontimenow.com/get-started
+
+License
+-------
+Copyright 2012 Axosoft, LLC
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.