Add branching resources (#1825)

* Update readme.md

Added description and links.

* Update content/roadmaps/106-javascript/content/107-javascript-control-flow/101-conditional-statements/readme.md

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

content/roadmaps/106-javascript/content/107-javascript-control-flow/101-conditional-statements/readme.md

@@ -1 +1,7 @@
-# Conditional statements
+# Conditional statements 
+
+When you write code, you often want to perform different actions for different decisions. You can use conditional statements in your code to do this. In JavaScript, we have three conditional statements: `if`, `if...else`, and `switch`.
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Building_blocks/conditionals'>Making decisions in your code — conditionals</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://javascript.info/ifelse'>Conditional branching: if, '?'</BadgeLink>