Is there any way to select a license for an existing GitHub repository, without adding or modifying any file at a particular location in the tree? Also, it's d

Is there any way to select a license for an existing GitHub repository, without adding or modifying any file at a particular location in the tree? Also, it's difficult to find out the license for any given repository while casually browsing or searching. I'm often looking for things that come with (or without) a particular license, e.g. "I can't use any GPL components in my current project." It would be really nice if the license was displayed prominently, just like the programming language used.