README.md

@@ -187,6 +187,12 @@ tmux new -s q7s-serial
 q7s_serial
 ```
 
+Other useful tmux commands:
+- Enable scroll mode: You can press `ctrl + b` and then `[` (`AltGr + 8`) to enable scroll mode.
+  You can quit scroll mode with `q`. 
+- Kill a tmux session: run `ctrl + b` and then `k`.
+- Detach from a tmux session: run `ctrl + b` and then `d`
+
 ### SSH console
 
 You can use the following command to connect to the Q7S with `ssh`: