Support for Coda font

Code font added. Fix for issue #48 
Please move this line down below (what is now) line 16 (so, below the Iceland font). This will ensure optimized loading. Please also use the same syntax as used on line 16. Select specific font weights, if possible, for even better optimization (i.e. load only the font weights that are used in the CSS, for example `Economica:700`).