Missing link back to front page

[RosieWatson]

Once clicking on one of the links from the 'Contents' section there is then no link to get back to the main page.

This is especially an issue once clicking on the 'Detailed Guides' link as partners are likely to click through lots of different pages and so not be able to just click the back button to return to the home page. This is not ideal because the homepage contains the only link to the FAQs page. (On a side note it might be worth having a link to the FAQs page at the bottom of each of the pages as well just to make it clearer)

It would be quite simple to just add an additional link to the 'API Docs > index' chain at the front so it showed something like 'Home > API Docs > index'.