[css-pseudo-4] Wording tweak

Author: fantasai

css-pseudo-4/Overview.bs

@@ -320,7 +320,7 @@ First-Letter Text: ''::first-letter'' pseudo-element and its ''::prefix'' and ''
       i.e, characters that belong to the Punctuation (<code>P*</code>) <a>Unicode general category</a> [[!UAX44]]--
       that precedes the [=first letter=].
     <li>
-      Punctuation other than opening punctuation and dashes--
+      Any punctuation other than opening punctuation and dashes--
       i.e. characters that belong to the Punctuation (<code>P*</code>) <a>Unicode general category</a>,
       excluding Open Punctuation (<code>Ps</code>)
       and Dash Punctuation (<code>Pd</code>)--