Small typo fixed

Author: dmols

src/Lms/Canvas/CanvasLms.php

@@ -361,7 +361,7 @@ public function updateCourseContent(Course $course, User $user, $force = false):
 
         $canvasApi = new CanvasApi($apiDomain, $apiToken);
 
-        // Batch page pulling maintaince
+        // Batch page pulling maintenance
         $pageUrls = [];
         $asyncFetch = true;