Fix TCP/IP link in README

Refs 328ed3650d
PR #4173 <https://github.com/Genymobile/scrcpy/pull/4173>

Signed-off-by: Romain Vimont <rom@rom1v.com>

README.md

@@ -5,7 +5,7 @@
 _pronounced "**scr**een **c**o**py**"_
 
 This application mirrors Android devices (video and audio) connected via
-USB or [over TCP/IP](doc/device.md#tcpip-wireless), and allows to control the
+USB or [over TCP/IP](doc/connection.md#tcpip-wireless), and allows to control the
 device with the keyboard and the mouse of the computer. It does not require any
 _root_ access. It works on _Linux_, _Windows_ and _macOS_.