Update README.md

Author: php-evs

README.md

@@ -7,7 +7,7 @@ namespace Learning;
 
 ## 1
 Get all Lessons from specific Site sorted by Course active date, Lesson active date
-```
+```php
 \Learning\LessonTable::getList([
   'order' => ['COURSE.ACTIVE_FROM' => 'ASC', 'ACTIVE_FROM' => 'ASC'],
   'filter' => [