Update README.md

@@ -2,9 +2,7 @@ simple-rtmp-server
 ==================
 
 simple rtmp origin live server over state-threads.<br/>
-can be used as origin server, or rtmp-server for encoder.
-
-### Summary
+can be used as origin server, or rtmp-server for encoder.<br/>
 srs is a simple, high-performance, running in single process, <br/>
 origin live server, with single vhost(like FMS \_\_defaultVhost\_\_).<br/>
 
@@ -27,7 +25,7 @@ step 3: play live stream <br/>
 url: rtmp://127.0.0.1:1935/live/livestream
 </pre>
 
-### Features
+### Summary
 1. simple: also stable enough.<br/>
 2. high-performance: single-thread, async socket, event/st-thread driven.<br/>
 3. no edge server, origin server only.<br/>