remove dependency on the yet to be released feature getRoutes()

Author: Megapixel99

lib/generate-doc.js

@@ -9,10 +9,10 @@ function assignRoutes (router, doc, basePath, prefixPath = '', iter = 0, strippe
 
   if (subRoutes.length > 0) {
     subRoutes.forEach((routeLayer) => {
-      const p = router.getRoutes()[0].path.split('/')[1]
+      const p = routeLayer.pathPatterns
 
       if (prefixPath.replaceAll('/', '').trim() !== p || iter > 1) {
-        prefixPath += `/${p}` // Prevents basePath from being added twice
+        prefixPath += p // Prevents basePath from being added twice
       } else {
         stripped = true // Set stripped to true for later
       }