fix typo of config.

@@ -40,7 +40,7 @@ srs_log_file        ./objs/srs.log;
 # if exceed the max connections, server will drop the new connection.
 # default: 1000
 max_connections     1000;
-# whether start as deamon
+# whether start as daemon
 # @remark: donot support reload.
 # default: on
 daemon              on;