update readme.

@@ -9,11 +9,11 @@ srs is a simple, high-performance, running in single process, <br/>
 origin live server, with single vhost(like FMS \_\_defaultVhost\_\_).<br/>
 
 Features:<br/>
-1. simple: also stable enough.
-2. high-performance: single-thread, async socket, event/st-thread driven.
-3. no edge server, origin server only.
-4. no vod streaming, live streaming only.
-5. no vhost, \_\_defaultVhost\_\_ only.
-6. no multiple processes, single process only.
+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/>
+4. no vod streaming, live streaming only.<br/>
+5. no vhost, \_\_defaultVhost\_\_ only.<br/>
+6. no multiple processes, single process only.<br/>
 
 Winlin