update doxygen introduction

update doxygen introduction

diff --git a/src/aubio.h b/src/aubio.h
index cf48d9b3745200c8a2087d987fc812b8076157c0..b326bfc78f44de1e766477cddedf12545eead0d4 100644 (file)
--- a/src/aubio.h
+++ b/src/aubio.h
@@ -21,8 +21,8 @@
  *
  * \section whatis Introduction
  *
- *     Aubio is a library for audio labelling: it provides function for pitch
- *     estimation and onset detection.
+ *     Aubio is a library for audio labelling: it provides functions for pitch
+ *     estimation, onset detection, beat tracking, and other annotation tasks.
  *
  *  \verbinclude README
  *