Add NGINX to readme

README.md

@@ -160,8 +160,8 @@ For more details on how the canary analysis and promotion works please [read the
 | A/B testing (headers and cookies filters)    | :heavy_check_mark: | :heavy_minus_sign: | :heavy_minus_sign: | :heavy_check_mark: |
 | Load testing                                 | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
 | Webhooks (custom acceptance tests)           | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
-| Request success rate check (Envoy metric)    | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
-| Request duration check (Envoy metric)        | :heavy_check_mark: | :heavy_minus_sign: | :heavy_check_mark: | :heavy_check_mark: |
+| Request success rate check (L7 metric)       | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
+| Request duration check (L7 metric)           | :heavy_check_mark: | :heavy_minus_sign: | :heavy_check_mark: | :heavy_check_mark: |
 | Custom promql checks                         | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: |
 | Ingress gateway (CORS, retries and timeouts) | :heavy_check_mark: | :heavy_minus_sign: | :heavy_check_mark: | :heavy_check_mark: |
 

docs/gitbook/README.md

@@ -5,7 +5,7 @@ description: Flagger is a progressive delivery Kubernetes operator
 # Introduction
 
 [Flagger](https://github.com/weaveworks/flagger) is a **Kubernetes** operator that automates the promotion of canary 
-deployments using **Istio** or **App Mesh** routing for traffic shifting and **Prometheus** metrics for canary analysis.
+deployments using **Istio**, **App Mesh** or **NGINX** routing for traffic shifting and **Prometheus** metrics for canary analysis.
 The canary analysis can be extended with webhooks for running 
 system integration/acceptance tests, load tests, or any other custom validation.