docs: add breadcrumbs to developing docs

Change-Id: Id63b53a77daff2fa45424dc6607a467dc55a10e3
diff --git a/docs/html/guide/developing/debugging/debugging-devtools.jd b/docs/html/guide/developing/debugging/debugging-devtools.jd
index 67605ae..157d62e 100644
--- a/docs/html/guide/developing/debugging/debugging-devtools.jd
+++ b/docs/html/guide/developing/debugging/debugging-devtools.jd
@@ -1,4 +1,6 @@
 page.title=Using the Dev Tools App
+parent.title=Debugging
+parent.link=index.html
 @jd:body
 
 <p>The Dev Tools application is installed by default on all system images included with the SDK,