I did a search on my computer, I found product.html which contains the text you were looking for:
<header id="header">
<h1>Help on products</h1>
<p>Each product has both a display and can have many variations (size, color, etc). This page lists all of the products grouped by display.</p>
<p>To see the variations of a product, click on “Quick Edit.†Using bulk updates (located at the bottom of the page) more than one product can have various actions applied.</p>
<h2>More Information</h2>
<ul>
<li><a href="http://www.drupalcommerce.org/commerce-kickstart-2/product-management-overview">Product Management Overview</a></li>
<li><a href="http://www.drupalcommerce.org/commerce-kickstart-2/choosing-between-page-or-variation">Choosing between Products and Product Variations</a></li>
<li><a href="http://www.drupalcommerce.org/commerce-kickstart-2/adding-new-product">Adding a New Product</a></li>
<li><a href="http://www.drupalcommerce.org/user-guide/product-attributes-variations">What are Product attributes and variations?</a></li>
<li><a href="http://www.drupalcommerce.org/user-guide/product-displays">What are Product Node Displays?</a></li>
</ul>