Guide: no documentation for license

[Marko Käning]

> I think it'd be best to have usage information in the Guide and the more in-depth discussions on the Trac pages.
> 
> Following that logic, I'd move these two paragraphs for the Guide:
> 
> The proper format for license consists of the license name, followed by a hyphen and number if indicating a specific version. A space should be placed between licenses if there is more than one.
> 
> (Additional suggestions: If the version number is a ".0" version, including the ".0" is optional. If the author gives the choice of using a given license or "any later version" of it, include a plus (+) after the version number; if the version specified is also the earliest version, just leave out a version number entirely since it implies all versions. —L2G)

OK, will add that.

What about the syntax suggestion for multiple licenses discussed in the thread "Dual licensing syntax"?
If one would say the new syntax should be e.g. {{GLP} {MIT}}, then for a single license it would require {{GPL}}, wouldn't it?!