Help is based in `man(1)` pages. To supply help with your own plugin or command, create one or more man.1~7 pages and add them to your project under the corresponding man/man% directory.
This will allow you to access help for my_plugin using `man(1)`. To add documentation to a `fisher(1)` command, prepend the keyword `fisher-` to the man file, e.g., `fisher-`my-command.1. This will allow you to access the man page by `fisher help my-command`.
There are utilities that can help you generate man pages from other text formats, such as Markdown. One example is `ronn(1)`. For an example without using external utilities, see *Example* in `fisher help plugins`.