Corrected typo in example on rendering collections in partials changi…

…ng @posts to @products to match the example

railties/guides/source/layouts_and_rendering.textile

@@ -1087,7 +1087,7 @@ Partials are very useful in rendering collections. When you pass a collection to
 
 When a partial is called with a pluralized collection, then the individual instances of the partial have access to the member of the collection being rendered via a variable named after the partial. In this case, the partial is +_product+, and within the +_product+ partial, you can refer to +product+ to get the instance that is being rendered.
 
-In Rails 3.0 there is also a shorthand for this, assuming +@posts+ is a collection of +post+ instances, you can simply do in the +index.html.erb+:
+In Rails 3.0 there is also a shorthand for this, assuming +@products+ is a collection of +product+ instances, you can simply do in the +index.html.erb+:
 
 <erb>
 <h1>Products</h1>