Migrating cart spec guide topics

Couple of thoughts:

1. Probably better not to use specific distribution names outside of an ifdef/endif block. I will create a macro for when the product name appears in the text, but in the case of anchors such as this, it is probably best to stick with 'openshift'.

2. Please don't use Camel_Case, stick to lower case for system things like link anchors.

3. This link anchor is separated from the related header (below) by two blank lines. Please put link anchors directly above the relevant line for clarity.