async: small extension of the description for the ms_timer parameter

src/modules/async/doc/async_admin.xml

@@ -92,9 +92,10 @@ modparam("async", "workers", 2)
 		<title><varname>ms_timer</varname> (int)</title>
 		<para>
 			Enables millisecond timer for async_ms_sleep() and async_ms_route() functions.
-			The integer value is the timer resolution in milliseconds.
-			ms_timer = 1 enables 1 millisecond timer but generates higher load on the system.
-			ms_timer = 20 enables 20 ms timer.
+			The integer value is the timer resolution in milliseconds. A smaller timer
+			resultion will generate a higher load on the system. If you set ms_timer
+			to 1 you will get a timer with 1 millisecond resultion, a setting of 20
+			provides a resultion of 20ms.
 		</para>
 		<para>
 		<emphasis>
@@ -105,7 +106,7 @@ modparam("async", "workers", 2)
 		<title>Set <varname>ms_timer</varname> parameter</title>
 		<programlisting format="linespecific">
 ...
-modparam("async", "ms_timer", 1)
+modparam("async", "ms_timer", 10)
 ...
 </programlisting>
 		</example>