如何在Angular js中使用ng-bind-html实现对contenteditable元素的双向绑定？

I'm just getting to grips with Angularjs and have seen the below in the documentation, how can I adapt this to use ng-bind-html as oppose to ng-model. I assume using both ng-bind-html and ng-model together would conflict?I'm just getting to grips with Angularjs and ha