readme added

Author: letsdeepchat

README.md

@@ -28,13 +28,12 @@ This repository contains solutions to the top 50 SQL problems on LeetCode, cover
 **Date:** 12 hours ago  
 
 ## History
-
-- **ADVANCED STRING FUNCTIONS + REGEX + CLAUSE**: Solutions for problems requiring advanced string manipulation, regular expressions, and specific SQL clauses.
+- **SELECT**: Basic SELECT statement solutions to retrieve data from one or more tables.
 - **BASIC AGGREGATION FUNCTION**: Solutions for filtering employee information using basic aggregation functions.
 - **BASIC JOIN**: Demonstrates various join techniques to combine rows from two or more tables based on a related column.
-- **SELECT**: Basic SELECT statement solutions to retrieve data from one or more tables.
 - **SORTING AND GROUP**: Solutions for sorting and grouping employee information.
 - **SUBQUERIES**: Solutions involving subqueries to perform operations within a query.
+- **ADVANCED STRING FUNCTIONS + REGEX + CLAUSE**: Solutions for problems requiring advanced string manipulation, regular expressions, and specific SQL clauses.
 
 ## Contributing