By default the text of the links that point to DokuWiki pages is the same as the page name, which is something like
This is not too readable. Luckily DokuWiki provides a configuration option that lets you change this behaviour.
conf/local.php and add the following row to it:
$conf['useheading'] = 1;
The result of this setting is that the text of all links that point to DokuWiki pages will now be the same as the first heading of the page.