Update maxclients directive in redis.conf info/wording.

docs/reference/clients.md

@@ -47,8 +47,7 @@ However, Redis does the following two things when serving clients:
 In Redis 2.4 there was a hard-coded limit for the maximum number of clients
 that could be handled simultaneously.
 
-In Redis 2.6 and newer, this limit is dynamic: by default it is set to 10000 clients, unless
-otherwise stated by the `maxclients` directive in `redis.conf`.
+In Redis 2.6 and newer, this limit is configurable by `maxclients` directive in `redis.conf` (set by default to 10000 clients).
 
 However, Redis checks with the kernel what the maximum number of file
 descriptors that we are able to open is (the *soft limit* is checked). If the