Update site content to the latest version

Based on the latest version in the [SmartLogic Website Copy Deck](https://docs.google.com/a/smartlogic.io/document/d/1OIb8fpH3L8Rh3eFg1urk9yEpkNbzdOlALaq61x0_5WY/). Some of the pages still need to be styled, but most of the content is now in place. Also added the page meta data.