Bookmark2md lets you create markdown documents and push them to GitHub without hassle. The interface is very simple and easy to use. All necessary options are displayed in a list, and there are the following functions:

1. Bookmark conversion - to convert selected bookmarks into a markdown file.

2. Push to GitHub - to upload a document to a GitHub repository.

To use this, simply install the extension on your browser. Then, choose the repository and branch onto which you want to push the markdown file. You will also have to enter the exclusion directory name and the maximum level. Lastly, enter a submission message.