I think you don't really need a plugin to do this stuff, I made a simple example:
html:
<div id="typewriter"></div>
js:
var str = "<p>This is my <span style='color:red;'>special string</span> with an <img src='http://placehold.it/150x150'> image !</p>",
i = 0,
isTag,
text;
(function type() {
text = str.slice(0, ++i);
if (text === str) return;
document.getElementById('typewriter').innerHTML = text;
var char = text.slice(-1);
if( char === '<' ) isTag = true;
if( char === '>' ) isTag = false;
if (isTag) return type();
setTimeout(type, 80);
}());
And here is the demo on jsfiddle