Made the Korean translation linked from other translations.

I've also adopted a fair ordering for languages, based on ISO/IEC 646
alpha-2 code (easy to do by hand or from the editor), as it will be
eventually problematic when more languages are added.

Author: lifthrasiir

_layouts/basic.html

@@ -38,10 +38,11 @@ <h2><a href="/contribute.html">Contribute</a></h2>
 
     <footer>
       <p>Our site in other languages:
+        <a href="/fr-FR/">Français</a>,
+        <a href="/ko-KR/">한국어</a>,
         <a href="/pt-BR/">Português</a>,
         <a href="/ru-RU/">Русский</a>,
-	      <a href="/zh-CN/">简体中文</a>,
-	      <a href="/fr-FR/">Français</a>
+        <a href="/zh-CN/">简体中文</a>
       </p>
     </footer>
 

_layouts/fr-FR/basic.html

@@ -39,9 +39,10 @@ <h2><a href="/fr-FR/contribute.html">Contribuer</a></h2>
     <footer>
       <p>Notre site dans d'autres langues&nbsp;:
         <a href="/en-US/">English</a>,
+        <a href="/ko-KR/">한국어</a>,
         <a href="/pt-BR/">Português</a>,
         <a href="/ru-RU/">Русский</a>,
-	<a href="/zh-CN/">简体中文</a>
+        <a href="/zh-CN/">简体中文</a>
       </p>
     </footer>
 

_layouts/ko-KR/basic.html

@@ -6,7 +6,7 @@
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width, initial-scale=1">
     <title>{{ page.title }}</title>
-    <meta name="keywords" content="Rust, Rust 프로그래밍 언어, rustlang, rust-lang, Mozilla Rust, 러스트, 모질라">
+    <meta name="keywords" content="Rust, Rust 프로그래밍 언어, rustlang, rust-lang, Mozilla Rust, 러스트, Mozilla, 모질라">
     <meta name="description" content="매우 빠르며, 세그폴트를 방지하고 스레드 안전성을 보장하는 시스템 프로그래밍 언어">
 
     <link rel="stylesheet" href="/css/bootstrap.css">

_layouts/zh-CN/basic.html

@@ -38,7 +38,9 @@ <h2><a href="/zh-CN/contribute.html">贡献</a></h2>
 
     <footer>
       <p>外语页面：
-	<a href="/en-US/">English</a>,
+        <a href="/en-US/">English</a>,
+        <a href="/fr-FR/">Français</a>,
+        <a href="/ko-KR/">한국어</a>,
         <a href="/pt-BR/">Português</a>,
         <a href="/ru-RU/">Русский</a>
       </p>