Update try, catch, finally in JavaScript roadmap (#1658)

content/roadmaps/106-javascript/content/107-javascript-control-flow/100-exception-handling/101-try-catch-finally.md

@@ -1 +1,6 @@
-# Try catch finally
+# Try, Catch, Finally
+
+These are ways of handling errors in your JavaScript code. Inside the try code block we have the code to run, inside the catch block we handle the errors, and inside the finally block we have code that runs after the execution of the previous code blocks, regardless of the result.
+
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.w3schools.com/js/js_errors.asp'>JavaScript Errors</BadgeLink>
+