Comments i18n.lang configuration parameter

tracim/development.ini.base

@@ -32,6 +32,7 @@ cookie_secret = 3283411b-1904-4554-b0e1-883863b53080
 [app:main]
 use = egg:tracim
 full_stack = true
+# Fallback language if browser and application cannot find one they agree on.
 i18n.lang = en
 
 cache_dir = %(here)s/data