docs: fix link

Change-Id: Id57ebbd12c16ef914ebe1d90260fdf8a5ae4587b
diff --git a/tools/droiddoc/templates-sdk/sdkpage.cs b/tools/droiddoc/templates-sdk/sdkpage.cs
index 77bb959..3216376 100644
--- a/tools/droiddoc/templates-sdk/sdkpage.cs
+++ b/tools/droiddoc/templates-sdk/sdkpage.cs
@@ -168,7 +168,7 @@
   <p>If you're already using the Android SDK, you should
 update to the latest tools or platform using the <em>Android SDK and AVD Manager</em>, rather than
 downloading a new SDK starter package. See <a
-href="{@docRoot}sdk/adding-components.html">Adding SDK Components</a>.</p>
+href="<?cs var:toroot ?>sdk/adding-components.html">Adding SDK Components</a>.</p>
 
   <table class="download">
     <tr>