how2 : stackoverflow from the terminal.
how2 finds the simplest way to do something in a unix shell. It's like man, but you can query it in natural language.
ADR Tools : A command-line tool for working with Architecture Decision Records (ADRs).
docopt : Command-line interface description language
StyleDocco : StyleDocco generates documentation and style guide documents from your stylesheets.
wuzz : Interactive cli tool for HTTP inspection
Wuzz command line arguments are similar to cURL's arguments, so it can be used to inspect/modify requests cop...
The TLDR pages are a community effort to simplify the beloved man pages with practical examples.