README: Add note about FreeBSD sndio dep

diff --git a/README b/README
index cebad30d2144c6441cb72981a5d1a563f2314251..4da075642cf152acc9514950dee73c0daaaa7792 100644 (file)
--- a/README
+++ b/README
@@ -35,8 +35,9 @@ Requirements
 Currently slstatus works on FreeBSD, Linux and OpenBSD.
 In order to build slstatus you need the Xlib header files.
 
-For volume percentage on Linux the kernel module `snd-mixer-oss` must be
-loaded.
+- For volume percentage on Linux the kernel module `snd-mixer-oss` must be
+  loaded.
+- For volume percentage on FreeBSD, `sndio` must be installed.
 
 
 Installation