Add Java Collection Framework (#1805)

* add spring boot content

* Update content/roadmaps/110-java/content/103-java-web-frameworks/101-spring-boot.md

* Add Java Collection Framework

* Update content/roadmaps/110-java/content/101-java-advanced-topics/102-collection-framework.md

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

content/roadmaps/110-java/content/101-java-advanced-topics/102-collection-framework.md

@@ -1 +1,7 @@
-# Collection framework
+# Collection Framework
+
+The Collection in Java is a framework that provides an architecture to store and manipulate the group of objects. Java Collections can achieve all the operations that you perform on a data such as searching, sorting, insertion, manipulation, and deletion.
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.javatpoint.com/collections-in-java'>Collections in Java</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.tutorialspoint.com/java/java_collections.htm'>Java - Collections Framework</BadgeLink>