questions/qa-ltr-scripts-in-rtl: Clarified the comments about archaic…

… word separators.

Fixes w3c/i18n-editors#18

questions/qa-ltr-scripts-in-rtl.en.html

@@ -335,7 +335,8 @@ <h3>Problems with punctuation</h3>
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 <p>There's a strong likelihood, however, that  text which is written right-to-left in the way we describe will be short items, where punctuation doesn't appear.</p>
-<p>For Chinese, such as the Taiwanese newspaper above, this problem can be avoided if you use a font that puts the comma in the center of the character space (which is common for Traditional Chinese fonts). Most archaic fonts, if they used word separators, also used ones that were symmetrical, and so are unaffected by this.</p>
+
+<p>For Chinese, such as the Taiwanese newspaper above, this problem can be avoided if you use a font that puts the comma in the center of the character space (which is common for Traditional Chinese fonts). Various archaic scripts (such as Phoenician, Old Hungarian, Ugaritic, etc.) used word separators other than spaces. In these cases the word separator characters were typically symmetrical, and so are also unaffected by this problem.</p>
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