Document TypeScript compatibility

website/guide/compatibility.html

@@ -54,6 +54,13 @@ Javascript.  There are no known issues.</p>
 <p>Like CoffeeScript, <a href="http://livescript.net/">LiveScript</a> compiles to
 Javascript.  There are no known issues.</p>
 
+<h2 id="compatibility-typescript">TypeScript</h2>
+
+<p><a href="https://github.com/Microsoft/TypeScript/">TypeScript</a>
+compiles to Javascript.  There are no known issues with compiling TypeScript
+using the Microsoft TypeScript compiler (in the ES5/CommonJS mode) and
+running the resulting Javascript using Duktape.</p>
+
 <h2 id="compatibility-underscorejs">Underscore.js</h2>
 
 <p><a href="http://underscorejs.org/">Underscore.js</a> provides a lot of