Update Feature requests

Feature-requests.md

@@ -7,7 +7,7 @@
 | 005 | open | low | add DV and DD to mode selector |
 | 006 | open | low | add keystroke for FM mode |
 | 007 | open | low | icom added the ability to specify which of three filter presets to use when changing mode, maybe we should at least specify one |
-| 008 | open | low | add squelch slider to UI. (Backend code exists) |
+| 008 | closed | low | add squelch slider to UI. (Backend code exists) |
 | 009 | open | low | add satellite setup pop-up window, where uplinik, downlink, mode (invert/non-invert), and fixed spectrum range is all set up |
 | 010 | open | low | lower-latency audio (of course) |
 | 011 | open | low | UI for WF style editing: waverform type, waveform color, waveform color, waveform color max hold etc |