Add options_from_collection_for_select to select_tag doco [hat-tip to anathematic]

actionpack/lib/action_view/helpers/form_tag_helper.rb

@@ -55,6 +55,9 @@ def form_tag(url_for_options = {}, options = {}, *parameters_for_url, &block)
       # * Any other key creates standard HTML attributes for the tag.
       #
       # ==== Examples
+      #   select_tag "people", options_from_collection_for_select(@people, "name", "id")
+      #   # <select id="people" name="people"><option value="1">David</option></select>
+      #   
       #   select_tag "people", "<option>David</option>"
       #   # => <select id="people" name="people"><option>David</option></select>
       #