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