I decided to pull the dashkards for Formatting and Mac OS X General together into one. The General dashkard is meant to contain the most frequently used keyboard shortcuts that are common to all (or at least most) Mac OS X apps. And the shortcuts for formatting text certainly fall into that category.
If you’re using dashkards the old-fashioned way through Safari’s WebClips feature, you’ll need to delete the WebClip for Formatting and add the dashkard for Mac OS X General. If you’re using the dashkards widget (which is strongly recommended), just select the dashkard from the popup menu (the Formatting dashkard is not available).