-$path_regex should be a string in regex-form, describing which paths this route
-handles. Each route is tested in order, from the top down, so put more specific
-handlers first. Also, the regex is tested on the entire path.
+$path_regex should be a string in regex-form, describing which methods and
+paths this route handles. Each route is tested in order, from the top down, so
+put more specific handlers first. Also, the regex is tested on the request
+method, plus the path. For instance, you might use the route [ 'POST /', ... ]
+to handle POST requests to your service.