simplify usage

@@ -41,9 +41,8 @@ cd simple-rtmp-server/trunk
 <pre>
 ./objs/srs -c conf/srs.conf
 </pre>
-
-DeploySamples:
-* [How to delivery RTMP?](https://github.com/winlinvip/simple-rtmp-server/wiki/SampleRTMP)
+<strong>Samples</strong>:
+* [Usage: How to delivery RTMP?](https://github.com/winlinvip/simple-rtmp-server/wiki/SampleRTMP)
 
 ### Architecture
 System Architecture: