remove stackoverflow q? links

threejs/lessons/fr/langinfo.hanson

@@ -5,7 +5,9 @@
   title: 'Three.js, notions de base',
   description: 'Apprendre à utiliser Three.js.',
   link: 'http://threejsfundamentals.org/',
-  commentSectionHeader: '<div>Questions ? <a href="http://stackoverflow.com/questions/tagged/three.js">Les poser sur stackoverflow</a>.</div>\n        <div>Problèmes / bug ? <a href="http://github.com/gfxfundamentals/threejsfundamentals/issues">Les reporter sur github</a>.</div>',
+  commentSectionHeader: `
+    <div>Problèmes / bug ? <a href="http://github.com/gfxfundamentals/threejsfundamentals/issues">Les reporter sur github</a>.</div>
+  `,
   missing: "Désolé, cet article n'a pas encore été traduit. [Les traductions sont le bienvenue](https://github.com/gfxfundamentals/threejsfundamentals)! 😄\n\n[Voici l'article anglais originel pour le moment]({{{origLink}}}).",
   toc: 'Table des matières',
   categoryMapping: {

threejs/lessons/ja/langinfo.hanson

@@ -5,7 +5,9 @@
   title: 'Three Fundamentals',
   description: 'Three.jsを学習する',
   link: 'http://threejsfundamentals.org/threejs/lessons/ja',
-  commentSectionHeader: '<div>質問はありますか? <a href="http://stackoverflow.com/questions/tagged/three.js">何かあればstackoverflowで尋ねて下さい</a>.</div>\n        <div>Issue/Bug? <a href="http://github.com/greggman/threefundamentals/issues">またはgithubでissueを作って下さい</a>.</div>',
+  commentSectionHeader: `
+    <div>Issue/Bug? <a href="http://github.com/greggman/threefundamentals/issues">またはgithubでissueを作って下さい</a>.</div>
+  `,
   missing: 'すいません、この記事はまだ翻訳してません. [Translations Welcome](https://github.com/gfxfundamentals/threejsfundamentals)! 😄\n\n[ここに元の英語の記事があります]({{{origLink}}}).',
   toc: '目次',
   categoryMapping: {

threejs/lessons/kr/langinfo.hanson

@@ -7,8 +7,6 @@
   link: 'http://threejsfundamentals.org/',
   commentSectionHeader: `
     <div>
-      <a href="http://stackoverflow.com/questions/tagged/three.js">Stackoverflow</a>
-      /
       <a href="http://github.com/greggman/threefundamentals/issues">Github</a>
     </div>
   `,

threejs/lessons/langinfo.hanson

@@ -6,7 +6,6 @@
   description: 'Learn Three.js',
   link: 'http://threejsfundamentals.org/',
   commentSectionHeader: `
-    <div>Questions? <a href="http://stackoverflow.com/questions/tagged/three.js">Ask on stackoverflow</a>.</div>
     <div>
        <a href="https://github.com/gfxfundamentals/threejsfundamentals/issues/new?assignees=&labels=suggested+topic&template=suggest-topic.md&title=%5BSUGGESTION%5D">Suggestion</a>?
        <a href="https://github.com/gfxfundamentals/threejsfundamentals/issues/new?assignees=&labels=&template=request.md&title=">Request</a>?

threejs/lessons/ru/langinfo.hanson

@@ -5,7 +5,9 @@
   title: 'Основы three.js',
   description: 'Изучение Three.js с нуля.',
   link: 'http://threejsfundamentals.org/',
-  commentSectionHeader: '<div>Вопросы? <a href="http://stackoverflow.com/questions/tagged/three.js">Спросите на stackoverflow</a>.</div>\n        <div>Нашли ошибку? <a href="http://github.com/gfxfundamentals/threejsfundamentals/issues">Создайте issue на github</a>.</div>',
+  commentSectionHeader: `
+    <div>Нашли ошибку? <a href="http://github.com/gfxfundamentals/threejsfundamentals/issues">Создайте issue на github</a>.</div>
+  `,
   missing: "К сожалению, страница ещё не переведена. [Я всегда рад переводчикам](https://github.com/gfxfundamentals/threejsfundamentals)! 😄\n\n[А пока можете почитать статью на английском языке]({{{origLink}}}).",
   toc: 'Оглавление',
   categoryMapping: {

threejs/lessons/zh_cn/langinfo.hanson

@@ -5,7 +5,9 @@
   title: 'Three.js 基础',
   description: 'Three.js 基础学习',
   link: 'http://threejsfundamentals.org/',
-  commentSectionHeader: '<div>有问题？ <a href="http://stackoverflow.com/questions/tagged/three.js">在 Stackoverflow 上提问</a>.</div>\n        <div><a href="https://github.com/gfxfundamentals/threejsfundamentals/issues/new?assignees=&labels=suggested+topic&template=suggest-topic.md&title=%5BSUGGESTION%5D">Suggestion</a>? <a href="https://github.com/gfxfundamentals/threejsfundamentals/issues/new?assignees=&labels=&template=request.md&title=">Request</a>? <a href="https://github.com/gfxfundamentals/threejsfundamentals/issues/new?assignees=&labels=bug+%2F+issue&template=bug-issue-report.md&title=">Issue</a>? <a href="https://github.com/gfxfundamentals/threejsfundamentals/issues/new?assignees=&labels=bug+%2F+issue&template=bug-issue-report.md&title=">Bug</a>?</div>',
+  commentSectionHeader: `
+    <div><a href="https://github.com/gfxfundamentals/threejsfundamentals/issues/new?assignees=&labels=suggested+topic&template=suggest-topic.md&title=%5BSUGGESTION%5D">Suggestion</a>? <a href="https://github.com/gfxfundamentals/threejsfundamentals/issues/new?assignees=&labels=&template=request.md&title=">Request</a>? <a href="https://github.com/gfxfundamentals/threejsfundamentals/issues/new?assignees=&labels=bug+%2F+issue&template=bug-issue-report.md&title=">Issue</a>? <a href="https://github.com/gfxfundamentals/threejsfundamentals/issues/new?assignees=&labels=bug+%2F+issue&template=bug-issue-report.md&title=">Bug</a>?</div>
+  `,
   missing: "抱歉，还没有中文翻译哦。 [欢迎加入翻译](https://github.com/gfxfundamentals/threejsfundamentals)! 😄\n\n[英文原文链接]({{{origLink}}}).",
   toc: '目录',
   categoryMapping: {