Merge branch '5.4' into 6.2

* 5.4:
  Removing 2 distracting scenarios

Author: javiereguiluz

rate_limiter.rst

@@ -44,11 +44,11 @@ squares).
     <object data="_images/rate_limiter/fixed_window.svg" type="image/svg+xml"></object>
 
 Its main drawback is that resource usage is not evenly distributed in time and
-it can overload the server at the window edges. In the previous example,
+it can overload the server at the window edges. In this example,
 there were 6 accepted requests between 11:00 and 12:00.
 
 This is more significant with bigger limits. For instance, with 5,000 requests
-per hour, a user could make the 4,999 requests in the last minute of some
+per hour, a user could make 4,999 requests in the last minute of some
 hour and another 5,000 requests during the first minute of the next hour,
 making 9,999 requests in total in two minutes and possibly overloading the
 server. These periods of excessive usage are called "bursts".