Updated manual to "Update GUI" instead of "Update screen"

docs/tex/manual.tex

@@ -263,7 +263,7 @@
       \info{If the panel fails to connect to the WiFi network for three minutes it will revert back and start the access point again. It will periodically scan for the configured WiFi and, if it detects that the configured WiFi has come back, it will reboot and connect to it.}
       \item Connect to your WiFi again and go to the NSPanel Manager web interface. If all things are working and setup correctly the panel should show up in the list of panels on the first page. You will then have to accept or deny the panel access into the manager.
       \info{If this is a US NSPanel version then it has to be set in the panel settings. Press the name of the NSPanel in the list and check the "Is US panel"-checkbox.}
-      \item Flash the new GUI file to the panel by pressing the "Actions"-button on the right and select "Update screen".
+      \item Flash the new GUI file to the panel by pressing the "Actions"-button on the right and select "Update GUI".
       \note{The flashing of the GUI file may be finicky and might require multiple tries before it succeeds. If it fails and reboots or you see a "System data error", just try again.}
     \item Continue on to create new rooms and add entities to your configuration. Continue with the section on the web interface and how it work \hyperref[sec:nspanelmanager_web_interface]{here}.
     \end{itemize}