Add desktop screenshot

Author: scopeInfinity

README.md

@@ -30,6 +30,11 @@ fork()          | TicTacToe Game
 | ------------- | ------------- |
 | ![gif](https://user-images.githubusercontent.com/9819066/132988756-de1b7770-430d-40df-a7c9-593cd752b20a.gif) | ![gif](https://user-images.githubusercontent.com/9819066/134997094-c44f70cb-dca9-4260-89fb-2676fad38631.gif) |
 
+| Desktop |
+| ------- |
+| ![image](https://user-images.githubusercontent.com/9819066/138595043-c8f5c6a7-30a4-448a-a6c6-ee62fe00946e.png) |
+
+
 
 ### Boot OS