mux
                                Package gorilla/mux is a powerful HTTP router and URL matcher for building Go web servers with 🦍
                            
                        How to download and setup mux
Open terminal and run command
                                            git clone https://github.com/gorilla/mux.git
                                        
                                        git clone is used to create a copy or clone of mux repositories.
                                        You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with mux https://github.com/gorilla/mux/archive/master.zip
Or simply clone mux with SSH
                                            [email protected]:gorilla/mux.git