DRY description and resources (#1020)

* DRY description and resources

Add a description and resources for DRY software development/design principle

* Minor space change

Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

content/roadmaps/101-backend/content/114-design-and-development-principles/106-dry.md

@@ -1 +1,7 @@
-# Dry
+# DRY
+
+Don't Repeat Yourself (DRY) is a software design principle which encourages developers to not repeat software patterns or code. DRY encourages code reusability, often in the form of methods, functions, or subroutines. When DRY is implemented successfully, developers are able to make one change to update many related elements while avoiding making changes to unrelated elements.
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://dzone.com/articles/software-design-principles-dry-and-kiss'>Software Design Principles DRY and KISS</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.1001745#s5'>Best Practices for Scientific Computing</BadgeLink>