Update database section to focus on scaling databases (#4843)

src/data/roadmaps/backend/content/109-scaling-databases/index.md

@@ -1,8 +1,8 @@
-# Databases
+# Scaling Databases
 
-A database is a collection of useful data of one or more related organizations structured in a way to make data an asset to the organization. A database management system is a software designed to assist in maintaining and extracting large collections of data in a timely fashion.
+Scaling databases is the process of adapting them to handle more data and users efficiently. It's achieved by either upgrading existing hardware (vertical scaling) or adding more servers (horizontal scaling). Techniques like sharding and replication are key. This ensures databases continue to be a robust asset as they grow.
 
 Visit the following resources to learn more:
 
-- [Oracle: What is a Database?](https://www.oracle.com/database/what-is-database/)
-- [Prisma.io: What are Databases?](https://www.prisma.io/dataguide/intro/what-are-databases)
+- [MongoDB: Database Scaling Basics](https://www.mongodb.com/basics/scaling)
+- [Codecademy: Database Scaling Strategies](https://www.codecademy.com/article/database-scaling-strategies)