minor #9061 Close the tag (stood)

This PR was submitted for the 4.0 branch but it was merged into the 2.7 branch instead (closes #9061).

Discussion
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Close the tag

Commits
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c08f8db Close the tag

Author: javiereguiluz

reference/forms/types/collection.rst

@@ -208,7 +208,7 @@ And update the template as follows:
 
         <a href="#" 
             class="add-another-collection-widget"
-            data-list="#email-field-list>Add another email</a>
+            data-list="#email-field-list">Add another email</a>
 
         {# ... #}
     {{ form_end(form) }}