HTRACE-38 Add apache license header to src/main/site/markdown/index.md (Colin Patrick McCabe)
diff --git a/src/main/site/markdown/index.md b/src/main/site/markdown/index.md
index b496ce1..1e3f866 100644
--- a/src/main/site/markdown/index.md
+++ b/src/main/site/markdown/index.md
@@ -1,3 +1,17 @@
+<!---
+  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. See accompanying LICENSE file.
+-->
+
 Apache HTrace is an <a href="http://htrace.incubator.apache.org">Apache Incubator</a>
 project. To add HTrace to your project, see detail on how to add it as a
 <a href="dependency-info.html">dependency</a>.