Update API.md

API.md

@@ -146,16 +146,16 @@ module.exports.create = function (conf, deps, app) {
 };
 ```
 
-Special methods for `app`:
---------------------------
+### Special methods for `app`:
 
-### app.handlePromise(request, response, promise, message);
+```
+app.handlePromise(request, response, promise, message);
+```
 
 `handlePromise` will respond to the request with the result of `promise` as JSON.
 If there is an error, it will include `message` in order to help you debug.
 
-Special properties of `request`:
---------------------------------
+### Special properties of `request`:
 
 ```js
 req.getSiteCapability(pkg)          // Promises a capability on behalf of the current site (req.experienceId) without exposing secrets