Add content for Software Architecture (#1880)

* What is Software Architecture

added some descriptions and links for learning Software Architecture

* Update 100-what-is-software-architecture.md

* Update 100-what-is-software-architecture.md

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

content/roadmaps/114-software-architect/content/100-software-architect-basics/100-what-is-software-architecture.md

@@ -1,3 +1,8 @@
-# What is Software Architecture
+# What is Software Architecture?
 
 Describes how an application is built including its components, how they interact with each other, environment in which they operate and so on.
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.future-processing.com/blog/what-is-software-architecture-in-software-engineering/'>What is Software Architecture in Software Engineering?</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.freecodecamp.org/news/an-introduction-to-software-architecture-patterns/'>An Introduction to Software Architecture Patterns</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.infoq.com/articles/what-software-architecture/'>Software Architecture: It might not be what you think it is</BadgeLink>