fix DraweeHierarchy's java doc
@@ -22,8 +22,17 @@ import javax.annotation.concurrent.ThreadSafe;
*
* <p>Example hierarchy:
*
- * <p>o FadeDrawable (top level drawable) | +--o ScaleTypeDrawable | | | +--o BitmapDrawable | +--o
- * ScaleTypeDrawable | +--o BitmapDrawable
+ * <pre>
+ * o FadeDrawable (top level drawable)
+ * |
+ * +--o ScaleTypeDrawable
+ * | |
+ * | +--o BitmapDrawable
+ * |
+ * +--o ScaleTypeDrawable
+ * |
+ * +--o BitmapDrawable
+ * </pre>
*/
@ThreadSafe
public interface DraweeHierarchy {
