Clarify options_from_collection_for_select example

I'm not sure if I'm doing this correctly.. I'm using the diff from Github. Please bear with me, and let me know if I should submit this differently?

@@ -207,6 +207,11 @@ module ActionView 0

   # options_from_collection_for_select(@project.people, "id", "name")

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   # <option value="#{person.id}">#{person.name}</option>

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   #

0 + # Example (call, result). When specifying +selected+ using an ID be sure to pass an Integer rather than a string: 0 + # options_from_collection_for_select(@project.people, "id", "name", some_id.to_i) 0 + #

#{person.name} 0 + # #{person.name} #assume some_id was a string value of this person.id 0 + # 0

   # NOTE: Only the option tags are returned, you have to wrap this call in a regular HTML select tag.

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   def options_from_collection_for_select(collection, value_method, text_method, selected = nil)

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     options = collection.map do |element|