Links appear in #notification are not reachable from web browser

![730641aa956ca0079871d417e1f5a725.png (635×16)](http://dl.dropbox.com/u/2611378/gyazo/730641aa956ca0079871d417e1f5a725.png "730641aa956ca0079871d417e1f5a725.png (635×16)")

It's so inconvinient that I fix it. Also, as your github user name is hard-coded, I just replace it with `@nick`.