Add changelog for release v0.2.0

CHANGELOG.md

@@ -2,9 +2,23 @@
 
 ## Table of Contents
 
+- [v0.2.0](#v020)
 - [v0.1.0](#v010)
 - [v0.1.0-rc1](#v010-rc1)
 
+## v0.2.0
+
+The second official release of ingress2gateway.
+
+### Notable changes since v0.1.0-rc1
+Introduction of Istio.
+
+### Feature
+
+- Add support for Istio API conversion to K8S Gateway API (#111, @dpasiukevich)
+- Kong supports `ImplementationSpecific` as `PathType` and converts it into `RegularExpression.` (#89, @mlavacca)
+- Move ingress fetching logic to be isolated, per provider (#112, @LiorLieberman)
+
 ## v0.1.0
 The first official release of ingress2gateway.