Add speech timeout to settings file (#1459)

This is such a common question people have. I definitely believe we
should make it easier for them.

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

settings.talon

@@ -2,6 +2,10 @@ settings():
     # Adjust the scale of the imgui
     imgui.scale = 1.3
 
+    # Uncomment to set the speech timeout. This is the amount of time after you stop
+    # speaking until Talon starts processing the spoken audio. Default is 0.3s.
+    # speech.timeout = 0.3
+
     # Uncomment to enable dark mode for talon help menus
     # imgui.dark_mode = true