This PR adds an OAI coloured 'Fork me on Github` banner top right using CSS from https://github.com/simonwhitaker/github-fork-ribbon-css - the aim is to prominently link to the documentation source and encourage contributions.
Tested locally and does not obscure the right hand hamburger menu when screen width is mobile-sized.
Closes #41
This PR adds an OAI coloured 'Fork me on Github` banner top right using CSS from https://github.com/simonwhitaker/github-fork-ribbon-css - the aim is to prominently link to the documentation source and encourage contributions.
Tested locally and does not obscure the right hand hamburger menu when screen width is mobile-sized.