fix spaces in i18n doc

Author: clmath

docs/i18n.md

@@ -10,9 +10,10 @@ title: requirejs-dplugins/i18n
 
 ##### Table of Contents
 [Differences with RequireJS i18n plugin](#differences-with-requirejs-i18n-plugin)  
-[Creating an i18n bundle](#creating-an-i18n-bundle)
-[Using an i18n bundle](#using-an-i18n-bundle)
-[Building i18n bundles](#building-i18n-bundles)
+[Creating an i18n bundle](#creating-an-i18n-bundle)  
+[Using an i18n bundle](#using-an-i18n-bundle)  
+[Building i18n bundles](#building-i18n-bundles)  
+[Locale detection](#locale-detection)  
 
 <a name="differences-with-requirejs-i18n-plugin"></a>  
 ## Differences with RequireJS i18n plugin