src/io/source.h: add source_multi example

diff --git a/src/io/source.h b/src/io/source.h
index c07bf1e..9a4ac23 100644 (file)
--- a/src/io/source.h
+++ b/src/io/source.h
@@ -25,7 +25,10 @@
 
   Media source to read blocks of consecutive audio samples from file
 
+  To write to file, use ::aubio_sink_t.
+
   \example io/test-source.c
+  \example io/test-source_multi.c
 
 */