Show 2 cards next to each other on tablet viewport
Show 2 cards next to each other on tablet viewport

Fixes #497

brndnmtthws/dcos-website,ahoskins/dcos-website,dcos/dcos-website,ahoskins/dcos-website,brndnmtthws/dcos-website,dcos/dcos-website,brndnmtthws/dcos-website,brndnmtthws/dcos-website,ahoskins/dcos-website,ahoskins/dcos-website,dcos/dcos-website,dcos/dcos-website