diff --git a/x11vnc-remote-extended-display/README.md b/x11vnc-remote-extended-display/README.md
index e03b647..3b0c46a 100644
--- a/x11vnc-remote-extended-display/README.md
+++ b/x11vnc-remote-extended-display/README.md
@@ -3,3 +3,8 @@ With x11vnc, you can use your another device as a display that extends or mirror
 
 
 ## Get ready.
+- Before continuing, Make sure that your GNU/Linux system is running X Display server and connected to the same network. 
+- You can use x11vnc wirelessly, but to keep connection stable, Connect your another device to wired network other either by Ethernet or USB Tethering. 
+
+If you dont want to use other deivce keyboard, mouse or trackpad to control your GNU/Linux system you can enable view only mode in VNC settings. 
+