[css-ruby] Remove incorrect language tags, include terms in original language (#4942)

Closes #3292

Author: frivoal

css-ruby-1/Overview.bs

@@ -102,7 +102,7 @@ What is ruby?</h3>
 		</div>
 
 		In Japanese typography, this case is sometimes called
-		<span lang="ja">taigo</span> ruby or group-ruby (per-word ruby),
+		taigo ruby (Japanese: <span lang="ja">対語ルビ</span>) or group-ruby (per-word ruby), (
 		because the annotation as a whole is associated
 		with multi-character word (as a whole).
 	</div>
@@ -1536,7 +1536,7 @@ Appendix A: Default Style Sheet</h2>
 <h2 id="glossary">
 Glossary</h2>
 	<dl>
-		<dt id="g-bopomofo" lang="zh">Bopomofo
+		<dt id="g-bopomofo">Bopomofo (Chinese: <span lang=zh-Bopo>ㄅㄆㄇㄈ</span>, <span lang=zh-Hant>注音符號</span>, or <span lang=zh-Hans>注音符号</span>)
 		<dd>
 			37 characters and 4 tone markings used as phonetics in Chinese,
 			especially standard Mandarin.
@@ -1550,13 +1550,13 @@ Glossary</h2>
 			One tone mark, however, is placed before the bopomofo, not over it.
 			<!-- See Taiwanese requirements doc for EPUB at http://epub-revision.googlecode.com/files/EGLS_TW_eng.ppt -->
 
-		<dt id="g-hanja" lang="ko">Hanja
+		<dt id="g-hanja">Hanja (Korean: <span lang=ko>漢字</span>)
 		<dd>
 			Subset of the Korean writing system that utilizes ideographic
 			characters borrowed or adapted from the Chinese writing system.
-			Also see <a href="#g-kanji"><span lang="ja">Kanji</span></a>.
+			Also see <a href="#g-kanji">Kanji</a>.
 
-		<dt id="g-hiragana" lang="ja">Hiragana
+		<dt id="g-hiragana">Hiragana (Japanese: <span lang=ja>平仮名</span>)
 		<dd>
 			Japanese syllabic script, or character of that script.
 			Rounded and cursive in appearance.
@@ -1566,33 +1566,33 @@ Glossary</h2>
 			mostly used to write Japanese words
 			when kanji are not available or appropriate,
 			and word endings and particles.
-			Also see <a href="#g-katakana"><span lang="ja">Katakana</span></a>.
+			Also see <a href="#g-katakana">Katakana</a>.
 
 		<dt id="g-ideogram">Ideograph
 		<dd>
 			A character that is used to represent an idea, word, or word component,
 			in contrast to a character from an alphabetic or syllabic script.
 			The most well-known ideographic script is used (with some variation)
 			in East Asia (China, Japan, Korea,...).
-		<dt id="g-kana" lang="ja">Kana
+		<dt id="g-kana">Kana (Japanese: <span lang=ja>仮名</span>)
 		<dd>
 			Collective term for hiragana and katakana.
 
-		<dt id="g-kanji">Kanji
+		<dt id="g-kanji">Kanji (Japanese: <span lang=ja>漢字</span>)
 		<dd>
 			Japanese term for ideographs; ideographs used in Japanese.
 			Subset of the Japanese writing system,
 			used together with hiragana and katakana.
-			Also see <a href="#g-hanja"><span lang="ko">Hanja</span></a>.
+			Also see <a href="#g-hanja">Hanja</a>.
 
-		<dt id="g-katakana" lang="ja">Katakana
+		<dt id="g-katakana">Katakana (Japanese: <span lang=ja>片仮名</span>)
 		<dd>
 			Japanese syllabic script, or character of that script.
 			Angular in appearance.
 			Subset of the Japanese writing system,
 			used together with kanji and hiragana.
 			In recent times, mainly used to write foreign words.
-			Also see <a href="#g-hiragana"><span lang="ja">Hiragana</span></a>.
+			Also see <a href="#g-hiragana">Hiragana</a>.
 	</dl>
 
 <h2 class=no-num id="acknowledgments">