Add Javalin to Web Frameworks

Author: fauzan171

README.md

@@ -93,6 +93,7 @@ We are evaluating to make this the default, you can provide feedback here in [#1
     - [Version Managers](#version-managers)
     - [Web Crawling](#web-crawling)
     - [Web Frameworks](#web-frameworks)
+- [Javalin](https://github.com/javalin/javalin) - Lightweight REST framework for Java and Kotlin.
     - [Workflow Orchestration Engines](#workflow-orchestration-engines)
   - [Resources](#resources)
     - [Related Awesome Lists](#related-awesome-lists)