Update 'README.md'

README.md

@@ -1,15 +1,15 @@
 ```sql
-WITH RECURSIVE hierarcy (id, title, description, parent_id) AS
+WITH RECURSIVE child (id, title, description, parent_id) AS
 (
   SELECT id, title, description, parent_id
     FROM items
     WHERE id = 38
-  UNION ALL
-  SELECT items.id, items.title, items.description, items.parent_id
-    FROM hierarcy JOIN items
-      ON hierarcy.parent_id = items.id
+  UNION
+  SELECT parent.id, parent.title, parent.description, parent.parent_id
+    FROM child JOIN items as parent
+      ON child.parent_id = parent.id
 )
-SELECT * FROM hierarcy;
+SELECT * FROM child;
 ```
 
 https://www.mysqltutorial.org/mysql-adjacency-list-tree/