How to download and setup unity-webgl-multiplayer
Open terminal and run command
                                            git clone https://github.com/valiafetisov/unity-webgl-multiplayer.git
                                        
                                        git clone is used to create a copy or clone of unity-webgl-multiplayer 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 unity-webgl-multiplayer https://github.com/valiafetisov/unity-webgl-multiplayer/archive/master.zip
Or simply clone unity-webgl-multiplayer with SSH
                                            [email protected]:valiafetisov/unity-webgl-multiplayer.git                                    
                                    If you have some problems with unity-webgl-multiplayer
You may open issue on unity-webgl-multiplayer support forum (system) here: https://github.com/valiafetisov/unity-webgl-multiplayer/issuesSimilar to unity-webgl-multiplayer repositories
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