WardblawG uses one of the most common types of Creative Commons. See the CCL summary page and the full licence for more information. There are other different types of Creative Commons that may be considered.
By saying you grant a certain type of Creative Commons Licence, you are doing just that: no fancy legal documents required, because they’ve already been drafted for you. In case you haven’t discovered by now, WardblawG is a massive fan of freeing up information and keeping it simple. Welcome to FOI 2.0?