Updated Configuration (markdown)

Configuration.md

@@ -74,6 +74,12 @@ The option `dir` controls where the lock file is stored. Note that this director
 
 The base64.js library version, defaults to `2.1.9`. Use `1.7` if you are upgrading from a ZeroBin Alpha 0.19 installation for compatibility with your existing pastes.
 
+### languageselection
+
+By default ZeroBin tries to detect the browser language of the visitors if such a HTTP header is sent and falls back to English language if no such header is present or no matching translation was found.
+
+Optionally `languageselection` enables drop down can be enabled. It is disabled by default, as it makes use of a session cookie named "lang" to persist the selected language between calls. It is deleted when the browser is closed.
+
 ### model
 
 The sections `[model]` and `[model_options]` control how your pastes are stored. Currently ZeroBin stores its pastes as flat files by default (`[model]` section, `class = zerobin_data`) and the option `dir` in the section `[model_options]` tells it in what folder to store them. Note that this directory needs to be writable for the process running PHP (i.e. your webserver, FPM or CGI process).