Fix broken links

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       <p its-locale-filter-list="en" lang="en">Chinese characters include Traditional Chinese and Simplified Chinese alternatives. The former is commonly used in Taiwan, Hong Kong and Macao while the latter is commonly used in Mainland China, Singapore and Malaysia.</p>
       <p its-locale-filter-list="zh-hans" lang="zh-hans">依照各地的通行标准，中文所使用的汉字主要分为繁体字与简体字。前者又称正体字、传统汉字等，主要通行于台湾、香港、澳门等地；后者又作简化字，主要通行于中国大陆、新马地区。本文依笔画多寡与部件结构为区别，分别称为繁体字与简体字。</p>
       <p its-locale-filter-list="zh-hant" lang="zh-hant">依照各地的通行標準，中文所使用的漢字主要分為繁體字與簡體字。前者又作正體字、傳統漢字等，主要通行於台灣、香港、澳門等地；後者又作簡化字，主要通行於中國大陸、星馬地區。本文依筆畫多寡與部件結構為區別，分別稱為繁體字與簡體字。</p>
-      <p its-locale-filter-list="en" lang="en">Different glyphs are used in different regions. One <a href="https://www.w3.org/TR/i18n-glossary/#def_unicode_code_point">Unicode code point</a> of a Han character may have more than one valid glyph, depending on operating system and typeface used. The focus of this document is Chinese composition and will not cover glyph variations in detail.</p>
-      <p its-locale-filter-list="zh-hans" lang="zh-hans">不同地区所使用的字形有差异，各种字形与<a href="https://www.w3.org/TR/i18n-glossary/#def_unicode_code_point">Unicode码位</a>并非一一对应关系，需要依赖处理系统和字体来呈现。本文主要探究中文排版，对此不做详述。</p>
-      <p its-locale-filter-list="zh-hant" lang="zh-hant">不同地區所使用的字形有差異，各種字形與<a href="https://www.w3.org/TR/i18n-glossary/#def_unicode_code_point">Unicode碼位</a>並非一一對應關係，需要依賴處理系統和字體來呈現。本文主要探究中文排版，對此不做詳述。</p>
+      <p its-locale-filter-list="en" lang="en">Different glyphs are used in different regions. One <a href="https://www.w3.org/TR/i18n-glossary/#dfn-code-point">Unicode code point</a> of a Han character may have more than one valid glyph, depending on operating system and typeface used. The focus of this document is Chinese composition and will not cover glyph variations in detail.</p>
+      <p its-locale-filter-list="zh-hans" lang="zh-hans">不同地区所使用的字形有差异，各种字形与<a href="https://www.w3.org/TR/i18n-glossary/#dfn-code-point">Unicode码位</a>并非一一对应关系，需要依赖处理系统和字体来呈现。本文主要探究中文排版，对此不做详述。</p>
+      <p its-locale-filter-list="zh-hant" lang="zh-hant">不同地區所使用的字形有差異，各種字形與<a href="https://www.w3.org/TR/i18n-glossary/#dfn-code-point">Unicode碼位</a>並非一一對應關係，需要依賴處理系統和字體來呈現。本文主要探究中文排版，對此不做詳述。</p>
       <p its-locale-filter-list="en" lang="en">In addition to Han characters (Hanzi), various punctuation marks, as well as Western text such as European numerals, Latin letters and/or Greek letters, may be used in Chinese text.</p>
       <p its-locale-filter-list="zh-hans" lang="zh-hans">中文排版除了汉字外，也使用标点符号，也会与阿拉伯数字、拉丁文字、希腊文字等西文混排。</p>
       <p its-locale-filter-list="zh-hant" lang="zh-hant">中文排版除了漢字外，也使用標點符號。也會與阿拉伯數字、拉丁文字、希臘文字等西文混排。</p>