modules: readme files regenerated - async ... [skip ci]

src/modules/async/README

@@ -120,15 +120,16 @@ modparam("async", "workers", 2)
 3.2. ms_timer (int)
 
    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.
+   functions. 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.
 
    Default value is 0.
 
    Example 1.2. Set ms_timer parameter
 ...
-modparam("async", "ms_timer", 1)
+modparam("async", "ms_timer", 10)
 ...
 
 4. Functions