Update translator documentation.

Whitespace updates.
Break lines in README at or before 80 characters.
L10n updates.

plugins/DirectionDetector/DirectionDetectorPlugin.php

@@ -261,6 +261,7 @@ class DirectionDetectorPlugin extends Plugin {
             'version' => DIRECTIONDETECTORPLUGIN_VERSION,
             'author' => 'Behrooz Shabani',
             'homepage' => $url,
+            // TRANS: Plugin description.
             'rawdescription' => _m('Shows notices with right-to-left content in correct direction.')
         );
         return true;