Enhance README with SQL and focus areas

Updated README to include SQL solutions and additional focus areas.

Author: RispaJoseph

README.md

@@ -1,9 +1,45 @@
 # LeetCode Grind 🧠🐍
 
-A personal collection of LeetCode problems solved in Python as part of daily DSA practice.
+![Python](https://img.shields.io/badge/Python-3.x-blue)
+![DSA](https://img.shields.io/badge/DSA-Practice-success)
+![LeetCode](https://img.shields.io/badge/LeetCode-Grind-orange)
 
-Focused on:
-- Clean solutions
-- Strong fundamentals
-- Consistent problem solving
+A personal collection of LeetCode problems solved in **Python** and **SQL** as part of my daily **DSA and problem-solving practice**.
 
+This repository reflects consistent hands-on learning with a focus on:
+- Strong data structures & algorithms fundamentals
+- Clean, readable, and efficient solutions
+- Logical thinking and query building for database problems
+
+---
+
+## 📌 What you’ll find here
+
+- 📂 Individual folders for each LeetCode problem  
+- 🐍 Python solutions for algorithmic challenges  
+- 🗄️ SQL solutions for database-related problems  
+- 📝 Problem descriptions included alongside solutions  
+
+---
+
+## 🎯 Focus Areas
+
+- Arrays, Strings, Linked Lists  
+- Stacks, Queues, Trees, Graphs  
+- Recursion & Dynamic Programming  
+- Time & Space Complexity optimization  
+- SQL joins, aggregations, subqueries, and window functions  
+
+---
+
+## 🚀 Why this repo?
+
+This repository helps me:
+- Stay consistent with DSA practice  
+- Track learning progress over time  
+- Strengthen problem-solving skills for interviews  
+- Build a solid foundation for backend and software engineering roles  
+
+---
+
+> One problem at a time. Consistency over intensity. 💡