Fix typo in README.md

PR #1523 <https://github.com/Genymobile/scrcpy/pull/1523>
Signed-off-by: NRomain Vimont <rom@rom1v.com>

README.md

@@ -301,7 +301,7 @@ ssh -CN -L5037:localhost:5037 -L27183:localhost:27183 your_remote_computer
 From another terminal:
 
 ```bash
-scrcpy --force-adb-forwrad
+scrcpy --force-adb-forward
 ```