The following file: https://github.com/sihorton/appjs-TiddlyWiki/blob/master/README.md is shown when you navigate to https://github.com/sihorton/appjs-TiddlyWiki/. In it there is a section "Developers". If you want to you can re-write this section to cover how you are hijacking TiddlyWiki functions and integrating with AppJS. Currently it only covers the original implementation using externalJsSave etc. It is good to document the code like this as it makes it easier for other developers to get involved.
The following file: https://github.com/sihorton/appjs-TiddlyWiki/blob/master/README.md is shown when you navigate to https://github.com/sihorton/appjs-TiddlyWiki/. In it there is a section "Developers". If you want to you can re-write this section to cover how you are hijacking TiddlyWiki functions and integrating with AppJS. Currently it only covers the original implementation using externalJsSave etc. It is good to document the code like this as it makes it easier for other developers to get involved.