Add link styles
Add link styles

Show colour variables used by the front end toolkit to set link colours.

joelanman/govuk_elements,alphagov/govuk_elements,gavboulton/govuk_elements,alphagov/govuk_elements,alphagov/govuk_elements,TFOH/govuk_elements,TFOH/govuk_elements,joelanman/govuk_elements,gavboulton/govuk_elements,gavboulton/govuk_elements,alphagov/govuk_elements,gavboulton/govuk_elements