only-en fixed a typo

Author: sebkir

src/common/en/glossar.asciidoc

@@ -210,7 +210,7 @@ More under xref:monitoring_basics#hosts_services[Hosts and services].
 
 [#host_tag]
 ==== Host tag
-Host tags are characteristics that can be assigned to hosts so these can be targeted later in the configuration for rules or or later in monitoring for views.
+Host tags are characteristics that can be assigned to hosts so these can be targeted later in the configuration for rules or later in monitoring for views.
 Host tags are divided into groups, for example a tag group _Operating systems_ can be set up with the tags _Linux_ and _Windows_.
 Some tag groups are predefined, such as the type of {CMK} agent used or the IP address family used to record whether a host should be monitored over IPv4, IPv6, or both versions.
 The tags also have predefined values and a default which is assigned to each host as long as it has not been overwritten with another option from the group.