docs: add developer guide cross-references, Project ACRE

Change-Id: I5df1c4e13af67ff4c4a5b22f3cb1247bf0103b09
diff --git a/core/java/android/content/Loader.java b/core/java/android/content/Loader.java
index 368c33e..b962800 100644
--- a/core/java/android/content/Loader.java
+++ b/core/java/android/content/Loader.java
@@ -40,8 +40,12 @@
  *
  * <p>Most implementations should not derive directly from this class, but
  * instead inherit from {@link AsyncTaskLoader}.</p>
- * <p>For more information, see the <a
- * href="{@docRoot}guide/topics/fundamentals/loaders.html">Loaders</a> developer guide.</p>
+ *
+ * <div class="special reference">
+ * <h3>Developer Guides</h3>
+ * <p>For more information about using loaders, read the
+ * <a href="{@docRoot}guide/topics/fundamentals/loaders.html">Loaders</a> developer guide.</p>
+ * </div>
  *
  * @param <D> The result returned when the load is complete
  */