Great idea. Using a browser to display help text has become pretty common. For many games, for instance, this has superseded .pdf manuals, which supercedes paper. Unless there is already a tk extension to display html this seems like a good idea. We could even put a link to a youtube video tutorial if there is one or if someone makes one. (There seems to be some creative types interested in helping with Idle. This would be a good way for someone to contribute.