Update theme section of hackathon page
Update theme section of hackathon page


cssbristol/cssbristol.github.io,cssbristol/cssbristol.github.io,cssbristol/cssbristol.github.io,cssbristol/css-website-2015,cssbristol/cssbristol.github.io,cssbristol/cssbristol.github.io