Edited README.md file.

Author: AlexanderPro

README.md

@@ -5,6 +5,7 @@ SmartSystemMenu extends system menu of all windows in the system. It appends nex
 
 * **Information.** Shows a dialog with information of the current window and process: the window handle, the window caption, the window style, the window class, the process name, the process id, the path to the process.
 * **Always On Top.** Allows the current window to stay on top of all other windows.
+* **Save Window Screenshot.** Allows to save the current window screenshot on a disk.
 * **Resize.** Allows to change the size of the current window.
 * **Alignment.** Allows the current window to be aligned with any of the 9 positions on the desktop.
 * **Transparency.** Allows to change the transparency of the current window.