Update README.md

Author: mangini

README.md

@@ -26,3 +26,20 @@ You can run the script again in the same document whenever you want, just clicki
   * blocks of text delimited by "--- source code" and "---" are converted to `<pre></pre>` and prefixed by 4 empty spaces
   * "--- jsperf `<testID>`" is replaced by an iframe that shows an interactive chart of a JSPerf test. The `<testID>` is the last part of the URL of the Browserscope anchor in your JSPerf test. Something like `"agt1YS1wcm9maWxlcnINCxIEVGVzdBjlm_EQDA"` in the URL `http://www.browserscope.org/user/tests/table/agt1YS1wcm9maWxlcnINCxIEVGVzdBjlm_EQDA`
 
+
+
+## LICENSE
+
+Copyright 2013 Google Inc. All Rights Reserved.
+
+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.