Make it work after upstream changes

The workflow was no longer working due to upstream CDN changes.
See freeCodeCamp/devdocs#1317

src/scripts/conf.php

@@ -21,7 +21,6 @@
 class DevDocsConf {
 
   private static $baseUrl = 'https://devdocs.io/';
-  private static $docUrl = 'https://docs.devdocs.io/';
   private static $cacheDirectory = 'cache/';
 
   private $commands = ['add' => 1, 'remove' => 1, 'refresh' => 1, 'list' => 1, 'alias' => 1, 'unalias' => 1, 'select' => 0, 'addAll' => 0, 'nuke' => 0];
@@ -270,7 +269,7 @@ private function refreshCmd() {
     foreach ($docToUpdate as $doc) {
       file_put_contents(
         self::$cacheDirectory . $doc->slug . '.json',
-        $this->workflows->fetch(self::$docUrl . $doc->slug . '/index.json')
+        $this->workflows->fetch(self::$baseUrl . 'docs/' . $doc->slug . '/index.json')
       );
     }
     echo (($updateAll) ? 'All data docs' : $this->currentCmd[1] . ' doc') . ' updated!';

src/scripts/devdocs.php

@@ -9,7 +9,6 @@
 require_once 'workflows.php';
 
 class DevDocs {
-  private static $docUrl = 'http://docs.devdocs.io/';
   private static $cacheDirectory = 'cache/';
 
   private $workflows;
@@ -76,8 +75,8 @@ private function checkCache($documentation) {
     error_log("Checking existence of cache at $docFile");
     // Keep the docs in cache before expired
     if (!file_exists($docFile) || ($this->cacheLife >= 0 && filemtime($docFile) <= time() - 86400 * $this->cacheLife)) {
-      error_log("Download doc for $documentation at \"" . self::$docUrl . $documentation . '/index.json') . "\"";
-      file_put_contents($docFile, file_get_contents(self::$docUrl . $documentation . '/index.json'));
+      error_log("Download doc for $documentation at \"" . self::$baseUrl . 'docs/' . $documentation . '/index.json') . "\"";
+      file_put_contents($docFile, file_get_contents(self::$baseUrl . 'docs/' . $documentation . '/index.json'));
     }
   }