Update README.md

Author: dvinfosys

README.md

@@ -13,10 +13,8 @@ Before starting, I have faced few problems before starting expandablelistview an
 # Output
 
 # ExpandableListView Show
-
-![alt text](https://github.com/dvinfosys/Android-Custom-Navigation-Drawer-Using-ExpandableListView/blob/master/SrceenShort/screenshot-2018-05-14_11.08.21.271.png)
+<img src="https://github.com/dvinfosys/Android-Custom-Navigation-Drawer-Using-ExpandableListView/blob/master/SrceenShort/screenshot-2018-05-14_11.08.21.271.png" width="200px" heigth="200px">
 
 # ExpandableListView Hide
-
-![alt text](https://github.com/dvinfosys/Android-Custom-Navigation-Drawer-Using-ExpandableListView/blob/master/SrceenShort/screenshot-2018-05-14_16.30.25.153.png)
+<img src="https://github.com/dvinfosys/Android-Custom-Navigation-Drawer-Using-ExpandableListView/blob/master/SrceenShort/screenshot-2018-05-14_16.30.25.153.png" width="200px" heigth="200px">