Fix contributors section (#69)

* devdocs-website-6 Add Contributor Highlights in the docs

* Fix problem with contributors

* Remove commented code

* Code review fix

Author: nikolalardev

app/Http/Controllers/DocsController.php

@@ -91,7 +91,7 @@ public function show($version, $page = null)
         $metaKeywords = $pageCustomData['keywords'] ?? self::DEFAULT_META_KEYWORDS;
         $communityNote = $pageCustomData['communityNote'] ?? true;
         $contributors = $pageCustomData['contributors'] ?? false;
-        $contributorsData = explode(',', $contributors);
+        $contributorsData = $contributors ? explode(',', $contributors) : [];
 
         if (is_null($content)) {
             $otherVersions = $this->docs->versionsContainingPage($page);