Add content/en/database as a service (#494)

* Add content/en/database as a service

* Update database_as_a_service.md

* Update database_as_a_service.md

* A few edits

* Update database_as_a_service.md

* Update database_as_a_service.md

* How it helps edits 

The first sentence didn't flow well, especially after removing the sentence that was there before.

* Added words related to database as a service

Added two words DBaaS and DBA to  `wordlist.txt` to remove spellcheck error

* Removed 1 (of 3) database in the 1st sentences

Co-authored-by: Catherine Paganini <74001907+CathPag@users.noreply.github.com>

content/en/database_as_a_service.md

@@ -0,0 +1,17 @@
+---
+title: Database as a Service (DBaaS)
+status: Completed
+category: Technology
+---
+
+## What it is
+
+Database-as-a-Service (DBaaS) is a service managed by a [cloud](https://glossary.cncf.io/cloud_computing/) operator (public or private) that supports applications without requiring the application team to perform traditional database administration functions. DBaaS allows app developers to leverage databases without being experts or hiring a database administrator (DBA) to keep the database up to date.
+
+## Problem it addresses 
+
+Traditionally, in on-premise setups, organizations regularly have to invest in additional storage and processing capacity to accommodate database expansion which can be expensive. Additionally, developers provision and configure databases with the help of IT infrastructure teams, slowing deployment speed of database-driven applications down. Loading and executing them also takes longer.
+
+## How it helps
+
+DBaaS allows developers to outsource all administration/administrative operations to the cloud-based service provider. The service provider ensures the database is running smoothly, including configuration management, backups, patches, upgrades, service monitoring, and more, with a user-friendly interface to manage it all. DBaaS helps organizations develop enterprise-grade applications faster while minimizing database costs.

wordlist.txt

@@ -190,3 +190,5 @@ wordlists
 www
 yaml
 yml
+DBaaS
+DBA