diff --git a/README.md b/README.md
index c4ffb5a74..e63376a4c 100755
--- a/README.md
+++ b/README.md
@@ -68,6 +68,7 @@ cd simple-rtmp-server/trunk
 [Usage: How to deploy srs on ARM?](https://github.com/winlinvip/simple-rtmp-server/wiki/SampleARM)<br/>
 [Usage: How to show the demo of SRS?](https://github.com/winlinvip/simple-rtmp-server/wiki/SampleDemo)<br/>
 [Usage: Solution using SRS?](https://github.com/winlinvip/simple-rtmp-server/wiki/Sample)<br/>
+[Usage: Why SRS?](https://github.com/winlinvip/simple-rtmp-server/wiki/Product)<br/>
 
 ### System Requirements
 Supported operating systems and hardware:
diff --git a/trunk/src/app/srs_app_hls.hpp b/trunk/src/app/srs_app_hls.hpp
index 1e7e3283a..01121c9e5 100644
--- a/trunk/src/app/srs_app_hls.hpp
+++ b/trunk/src/app/srs_app_hls.hpp
@@ -255,7 +255,7 @@ private:
 /**
 * delivery RTMP stream to HLS(m3u8 and ts),
 * SrsHls provides interface with SrsSource.
-*
+* TODO: FIXME: add utest for hls.
 */
 class SrsHls
 {