more complete example

README.md

@@ -28,6 +28,9 @@ var md = require('markdown-it')(),
     mk = require('markdown-it-katex');
 
 md.use(mk);
+
+// double backslash is required for javascript strings, but not html input
+var result = md.render('# Math Rulez! \n  $\\sqrt{3x-1}+(1+x)^2$');
 ```
 
 Include the KaTeX stylesheet in your html:

package.json

 {
   "name": "markdown-it-katex",
-  "version": "1.0.8",
+  "version": "1.0.9",
   "description": "Fast math support for markdown-it with KaTeX",
   "main": "index.js",
   "scripts": {