bug symfony#5362 Fix invalid endtag (norkunas)

This PR was submitted for the 2.7 branch but it was merged into the 2.3 branch instead (closes symfony#5362).

Discussion
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Fix invalid endtag

Commits
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3f684c6 Fix invalid endtag

Author: wouterj

cookbook/profiler/data_collector.rst

@@ -123,11 +123,11 @@ following example can help you get started:
         {% set text %}
         <div class="sf-toolbar-info-piece">
             <b>Quick piece of data</b>
-            <span>100 units</div>
+            <span>100 units</span>
         </div>
         <div class="sf-toolbar-info-piece">
             <b>Another quick thing</b>
-            <span>300 units</div>
+            <span>300 units</span>
         </div>
         {% endset %}