Caret might be a bit more popular than GitBook. We know about 2 links to it since March 2021 and only 2 links to GitBook. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
You can have both a landing page (e.g.: www.your-project.dev) and a documentation website (e.g.: docs.your-project.dev). For creating documentation website GitBook is better fit than Gitlanding. GitBook is free for open source Projects (you just need to issue a request). - Source: dev.to / about 2 years ago
GitBook is a collaborative documentation tool that allows anyone to document anything—such as products and APIs—and share knowledge through a user-friendly online platform. According to GitBook, “GitBook is a flexible platform for all kinds of content and collaboration.” It provides a single unified workspace for different users to create, manage and share content without using multiple tools. For example:. - Source: dev.to / about 3 years ago
The developer provided the GitHub link: http://thomaswilburn.net/caret/. Source: almost 2 years ago
In lieu of Sublime Text, you might take look at the Caret editor. It has a lot of the same features. Developers page with info: http://thomaswilburn.net/caret/. Source: over 2 years ago
Docusaurus - Easy to maintain open source documentation websites
Typora - A minimal Markdown reading & writing app.
MkDocs - Project documentation with Markdown.
Dillinger - joemccann has 95 repositories available. Follow their code on GitHub.
Doxygen - Generate documentation from source code
Pine - A lightweight, modern macOS markdown editor written in Swift