[beast: 18/23] README.md: update build requirements

[Tim Janik <timj src gnome org>]

commit 0a98aa2663a9a1a6d6a9e9813e81de967ac7defe
Author: Tim Janik <timj gnu org>
Date:   Fri Oct 9 08:18:38 2015 +0200

    README.md: update build requirements
    
    Signed-off-by: Tim Janik <timj gnu org>

 README.md |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/README.md b/README.md
index c37a59d..c05d0af 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,8 @@ for Linux Audio Plugins
 ([LADSPA](http://wikipedia.org/wiki/LADSPA)),
 multitrack editing, unlimited undo, real-time synthesis, MIDI and various
 free audio codecs.
+Bse is the Beast Sound Engine, a library providing the synthesis and
+audio functions used by Beast.
 
 * For a full description, visit the project page:
        http://beast.testbit.eu
@@ -33,6 +35,8 @@ In order to build release tarballs, `Rapicorn`, `GnomeCanvas`,
 `Guile-1.8`, `Ogg/Vorbis` and `libflac` are required.
 Support for MP3 files is optional and requires `libmad` (MPEG audio
 decoder library) when compiling Beast.
+Compilation requires `g++-4.9` or later and a recent Linux
+distribution like Ubuntu-14.04.
 
 
 # INSTALLATION