在node_modules文件中查找
bpmn-js\dist\bpmn-modeler.development.js
bpmn-js\lib\BaseViewer.js
        在文件中搜索linkMarkup
            
            
              puppet
              
              
            
          
          var linkMarkup =
  '<a href="http://bpmn.io" ' +
      'target="_blank" ' +
      'class="bjs-powered-by" ' +
      'title="Powered by bpmn.io" ' +
      'style="position: absolute; bottom: 15px; right: 15px; z-index: 100">' +
    img +
  '</a>';
// 修改
var linkMarkup = ''