| backup | backup a file to backup/ folder, avoid overwriting it. | 
| bd | Show demos | 
| bd2pd | Convert a bookdown project into a page down project | 
| bookdownplus | Create demo files for building books with R bookdown package. | 
| copyfolder | copy necessary files to the working directory | 
| create | Prepare a strict template skeleton to contribute to bookdownplus | 
| get_output | Available output formats besides pdf_book | 
| get_template | Available templates. | 
| include_image | Insert an image from a url | 
| mail_font | A deprecated function | 
| more_output | Simple version of get_output() | 
| share | Prepare a relaxed template folder to contribute to bookdownplus | 
| template | Simple version of get_template() |