add info about altering default cassettes in sub-page classes
add info about altering default cassettes in sub-page classes
irfanah/site_prism.vcr,irfanah/site_prism.vcr,dnesteryuk/site_prism.vcr,dnesteryuk/site_prism.vcr,dnesteryuk/site_prism.vcr,irfanah/site_prism.vcr