Add HOWDOI_LOCATION note on README

jasonfellows · Jan 30, 2014 · 398112e · 398112e
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@@ -113,6 +113,7 @@ Notes
 -  A standalone Windows executable with the howdoi application `is available here <https://dl.dropbox.com/u/101688/website/misc/howdoi.exe>`_.
 -  An Alfred Workflow for howdoi can be found at `http://blog.gleitzman.com/post/48539944559/howdoi-alfred-even-more-instant-answers <http://blog.gleitzman.com/post/48539944559/howdoi-alfred-even-more-instant-answers>`_.
 -  Howdoi uses a cache for faster access to previous questions. Caching functionality can be disabled by setting the HOWDOI_DISABLE_CACHE environment variable. The cache is stored in `~/.cache/howdoi`.
+-  You can use HOWDOI_LOCALIZATION environment variable to set the localization of your question. Using this will change the search url to the localization url of your choice. Current supported localizations are **en** and **pt-br**.
 -  Special thanks to Rich Jones
    (`@miserlou <https://github.com/miserlou>`_) for the idea.