French translation (#83)

README.md

@@ -27,6 +27,7 @@ If you would like to translate the guide then please open a pull request or open
 if you need some help getting it setup.
 
 * [German/Deutsch](http://www.sqlstyle.guide/de/) by [AStasyK](https://github.com/AStasyK)
+* [French/Français](http://www.sqlstyle.guide/fr/) by [IdrissaD](https://github.com/IdrissaD)
 * [Italian/Italiano](http://www.sqlstyle.guide/it/) by [robertopauletto](https://github.com/robertopauletto)
 * [Japanese/日本語](http://www.sqlstyle.guide/ja/) by [nkurigit](https://github.com/nkurigit)
 * [Polish/Polski](http://www.sqlstyle.guide/pl/) by [andre-wojtowicz](https://github.com/andre-wojtowicz)

_config.yml

@@ -29,6 +29,9 @@ langs:
         en: German
     en: 
         en: English
+    fr:
+        fr: Français
+        en: French
     it:
         it: Italiano
         en: Italian

fr/index.md

@@ -0,0 +1,13 @@
+---
+layout: default
+lang: fr
+lang_title: Guide de style SQL
+contributors:
+    - user: IdrissaD
+      type: translator
+---
+
+* TOC
+{:toc}
+
+{% include sqlstyle.guide.fr.md %}