Added links to exception handling javascript roadmap (#3775)

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

src/data/roadmaps/javascript/content/107-javascript-control-flow/100-exception-handling/100-throw-statement.md

@@ -6,4 +6,5 @@ Visit the following resources to learn more:
 
 - [throw statement - w3schools](https://www.w3schools.com/jsref/jsref_throw.asp)
 - [JavaScript MDN Docs](https://developer.mozilla.org/en-us/docs/web/javascript/reference/statements/throw)
-- [Error Handling](https://javascript.info/error-handling)
+- [Error Handling](https://javascript.info/error-handling)
+- ["Throw" operator](https://javascript.info/try-catch#throw-operator)