added comments

Author: deepikahr

example/lib/main_temp.dart

@@ -182,7 +182,7 @@ class _MyHomePageState extends State<MyHomePage>
           itemBuilder: (context, index) => GFStickyHeader(
             enableHeaderOverlap: true,
             direction: Axis.vertical,
-            // stickyContentPosition: GFPosition.end,
+            stickyContentPosition: GFPosition.end,
             stickyContent:  Container(
               // alignment: AlignmentDirectional.centerEnd,
               child: Container(
@@ -201,7 +201,7 @@ class _MyHomePageState extends State<MyHomePage>
               // height: 100,
               width: 200,
               child: Image.network(imageList[index],
-                fit: BoxFit.cover, height: 200,
+                fit: BoxFit.cover, height: 100,
               ),
             ),
           )

lib/components/sticky_header/render_gf_sticky_header.dart

@@ -34,7 +34,6 @@ class RenderGFStickyHeader extends RenderBox
   final ScrollableState _scrollable;
   final bool _enableHeaderOverlap;
   final GFPosition _stickyContentPosition;
-  // double _overflow;
 
   Axis get direction => _direction;
   Axis _direction;