README.md updates (#135)

* README.md updates

* Update README.md

Co-authored-by: Kobi Levi <[email protected]>

---------

Co-authored-by: Kobi Levi <[email protected]>

Author: LiorLieberman

README.md

@@ -1,7 +1,7 @@
 # Ingress to Gateway
 
-Ingress2gateway helps translate Ingress resources to Gateway API resources,
-specifically HTTPRoutes. Ingress2gateway is managed by the [Gateway
+Ingress2gateway helps translate Ingress and provider-specific
+resources (CRDs) to Gateway API resources. Ingress2gateway is managed by the [Gateway
 API](https://gateway-api.sigs.k8s.io/) SIG-Network subproject.
 
 ## Scope
@@ -16,10 +16,6 @@ translated to [Gateway API](https://gateway-api.sigs.k8s.io/) directly.
 
 Note: Ingress2gateway is not intended to copy annotations from Ingress to Gateway API.
 
-### Istio
-
-With the introduction of the new [Istio](pkg/i2gw/providers/istio/README.md) provider, you can convert Istio API entities like Gateway and VirtualService to corresponding resources of the Gateway API, such as Gateway, HTTP/TLS/TCPRoutes, and ReferenceGrants.
-
 ## Installation
 
 If you have a Go development environment locally, you can install ingress2gateway with `go install github.com/kubernetes-sigs/[email protected]`