Update README.md

add information how to use it

README.md

@@ -2,6 +2,10 @@ Raspberry Pi Framebuffer Copy
 =============================
 This program used for copy primary framebuffer to secondary framebuffer (eg. FBTFT). It require lastest raspberry pi firmware (> 2013-07-11) to working properly.
 
+Tested on Raspberry Pi
+======================
+2017-11-29-raspbian-stretch
+
 Build
 -----
 
@@ -12,3 +16,16 @@ Build
     $ cmake ..
     
     $ make 
+
+
+How To Use
+----------
+$ ./fbcopy
+
+Wanna to run from booting
+-------------------------
+$ sudo cp fbcopy /usr/bin
+$ sudo chmod +x /usr/bin/fbcopy
+$ sudo nano /etc/rc.local -> add new line before "exit 0" with "/usr/bin/fbcp &" without quote
+$ sudo reboot
+