Use html elements inside your survey (type:'html')

Source code: Survey setup
Survey.defaultBootstrapCss.navigationButton = "btn btn-primary";
Survey.Survey.cssType = "bootstrap";
var survey = new Survey.Model({ questions: [
    { type: "html", name: "info", html:"<table><body><row><td><img src='http://surveyjs.org/images/26178-20160417.jpg' width='100px' /></td><td style='padding:20px'>You may put here any html code. For example images, <b>text</b> or <a href='http://surveyjs.org/builder/index.html'  target='_blank'>links</a></td></row></body></table>" }
]});

ReactDOM.render(<Survey.Survey model={survey} />, document.getElementById("surveyElement"));

html property:

var q = survey.getQuestionByName('info');
q.html = yourHtml; 
survey.render();