Update Feature requests

Feature-requests.md

@@ -23,4 +23,5 @@ big feature that I will do: add satellite setup pop-up window, where uplinik, do
 - debug flag, maybe with severity (-v vs -vv -vvv etc). suppress debug output w/o flag
 - key to switch on/off audio
 - handle ^c gracefully -- so that the rig's connections are closed.
-- the saved config file contains user/pass information. chmod 600 instead of 644 or encrypt user/pass
+- the saved config file contains user/pass information. chmod 600 instead of 644 or encrypt user/pass
+- switch on/off waterfall