docs: Update README.md
Fixed link to Envoy configuration page and added link to AWS API Gateway.
Closes
@@ -24,8 +24,8 @@ Control Decision API works with:
- [Ambassador](https://github.com/datawire/ambassador) via
[auth service](https://www.getambassador.io/reference/services/auth-service).
- [Envoy](https://www.envoyproxy.io) via the
- [External Authorization HTTP Filter](https://www.envoyproxy.io/docs/envoy/latest/configuration/http_filters/ext_authz_filter#config-http-filters-ext-authz)
-- AWS API Gateway via
+ [External Authorization HTTP Filter](https://www.envoyproxy.io/docs/envoy/latest/configuration/http/http_filters/ext_authz_filter)
+- [AWS API Gateway](https://aws.amazon.com/api-gateway/) via
[Custom Authorizers](https://aws.amazon.com/de/blogs/compute/introducing-custom-authorizers-in-amazon-api-gateway/)
- [Nginx](https://www.nginx.com) via
[Authentication Based on Subrequest Result](https://docs.nginx.com/nginx/admin-guide/security-controls/configuring-subrequest-authentication/)
