Added CIDR to

Hosts-Blocklists.md

@@ -100,7 +100,7 @@ Example:
 
 #### <a id="client"></a> <a id="client"></a> `client`
 
-The `$client` modifier allows specifying clients this rule will be working for. It accepts both client names or IP addresses.
+The `$client` modifier allows specifying clients this rule will be working for. It accepts both client names, IP addresses or CIDR ranges.
 
 The syntax is:
 
@@ -126,6 +126,7 @@ Client names usually contain spaces or other special characters, that's why you
 * `||example.org^$client='Frank\'s laptop'` — block `example.org` for the client named `Frank's laptop` only. Note that quote (`'`) in the name must be escaped.
 * `||example.org^$client=~'Mary\'s\, John\'s\, and Boris\'s laptops'` — block `example.org` for everyone except the client named `Mary's, John's, and Boris's laptops`. Note that comma (`,`) must be escaped as well.
 * `||example.org^$client=~Mom|~Dad|Kids` -- block `example.org` for `Kids`, but not for `Mom` and `Dad`. This example demonstrates how to specify multiple clients in one rule.
+* `||example.org^$client=192.168.0.0/24` -- block `example.org` for all clients with IP addresses in the range `192.168.0.0-192.168.0.255`
 
 #### <a id="important"></a> <a id="important"></a> `important`