Fix doc8 test

Signed-off-by: Emilio Cuesta <emiliocuesta@eprosima.com>

Author: emiliocuestaf

docs/fastdds/discovery/discovery_server.rst

@@ -315,8 +315,9 @@ Full example
 ^^^^^^^^^^^^
 
 The following constitutes a full example on how to configure *server* and *client* both programmatically and using XML.
-You may also have a look at the *eProsima Fast DDS* Github repository, which contains :fastdds-tree:`an example <examples/cpp/discovery_server>`
-similar to the one discussed in this section, as well as multiple other examples for different use cases.
+You may also have a look at the *eProsima Fast DDS* Github repository, which contains
+:fastdds-tree:`an example <examples/cpp/discovery_server>` similar to the one discussed in this section, as well as
+multiple other examples for different use cases.
 
 Server side setup
 """""""""""""""""