minor #5849 Clarified ambiguous wording (ThomasLandauer)

This PR was submitted for the 2.7 branch but it was merged into the 2.3 branch instead (closes #5849).

Discussion
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Clarified ambiguous wording

In this context, "even" can be misunderstood as "actually".

Commits
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90f5621 Update dom_crawler.rst
5ebb833 Clarified ambiguous wording

Author: weaverryan

components/dom_crawler.rst

@@ -87,7 +87,7 @@ Anonymous function can be used to filter with more complex criteria::
     $crawler = $crawler
         ->filter('body > p')
         ->reduce(function (Crawler $node, $i) {
-            // filter even nodes
+            // filter every other node
             return ($i % 2) == 0;
         });