Update README.md

Author: nb312

README.md

@@ -1,30 +1,25 @@
 
 ## Just for learnning
 ### Show some :heart: and star the repo to support the project.Thanks!
-
+### This Demo contains contents as follow:  
+Scrollview |  Sliver | common layout | Other | 
+--- | --- | --- |---  
+Page view |   SliverPersistentHeader| Row,Column,CrossAxisAlignment | InkWell
+ListView | SliverGrid | Stack | Shadow
+CustomScrollView | SliverFixedExtentList,SliverList | Expanded,Padding | Image.asset
+Nested ListView |   SliverFillViewport | SizedBox
+GridView | -- | Center | 
+ 
 ## ScrollView     
-<img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/nest_screen.png" width="320"> <img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/sliver_screen.png" width="320"> <img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/hero_screen.png" width="320"> <img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/list_screen_1.png" width="320"> <img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/list_screen_2.png" width="320"> <img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/page_view_screen.png" width="320">
+<img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/nest_screen.png" width="200"> <img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/sliver_screen.png" width="200"> <img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/hero_screen.png" width="200">    
+
+<img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/list_screen_1.png" width="200">  <img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/list_screen_2.png" width="200">  <img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/page_view_screen.png" width="200">
 
 ## Common Layout     
-<img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/row_column.jpg" width="320"><img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/cross_align.jpg" width="320"><img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/stack_screen_1.png" width="320">    <img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/stack_screen_2.png" width="320"><img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/expand_screen.png" width="320"><img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/padding_screen.png" width="320">
-
-### This Demo contains contents as follow:   
-  - Row
-  - Column
-  - CrossAxisAlignment
-  - Stack
-  - Expanded
-  - Padding  
-  - Page view
-  - ListView
-  - CustomScrollView
-  - SliverPersistentHeader
-  - Nested ListView
-  - Sliver
-  - SliverGrid
-  - SliverFixedExtentList
-  - SliverList
-  - SliverFillViewport
+<img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/row_column.jpg" width="200">  <img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/stack_screen_1.png" width="200">  <img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/cross_align.jpg" width="200">
+
+<img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/stack_screen_2.png" width="200"><img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/expand_screen.png" width="200">  <img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/padding_screen.png" width="200">
+
 <img src="https://github.com/nb312/flutter_layout/blob/master/screenshots/flutter_layout.gif" width="320">