Update Internal Load Balancer docs (#10062)

* Update internal load balancer doc

Signed-off-by: z1cheng <[email protected]>

* Fix incorrect description

Signed-off-by: z1cheng <[email protected]>

* GenerateREADME.md using helm-docs

Signed-off-by: z1cheng <[email protected]>

* Regenerate the docs

Signed-off-by: z1cheng <[email protected]>

---------

Signed-off-by: z1cheng <[email protected]>

Author: z1cheng

charts/ingress-nginx/README.md

@@ -143,8 +143,10 @@ controller:
     internal:
       enabled: true
       annotations:
-        # Create internal ELB
-        service.beta.kubernetes.io/aws-load-balancer-internal: "true"
+        # Create internal NLB
+        service.beta.kubernetes.io/aws-load-balancer-scheme: "internet-facing"
+        # Create internal ELB(Deprecated)
+        # service.beta.kubernetes.io/aws-load-balancer-internal: "true"
         # Any other annotation can be declared here.
 ```
 
@@ -187,6 +189,8 @@ controller:
         # Any other annotation can be declared here.
 ```
 
+The load balancer annotations of more cloud service providers can be found: [Internal load balancer](https://kubernetes.io/docs/concepts/services-networking/service/#internal-load-balancer).
+
 An use case for this scenario is having a split-view DNS setup where the public zone CNAME records point to the external balancer URL while the private zone CNAME records point to the internal balancer URL. This way, you only need one ingress kubernetes object.
 
 Optionally you can set `controller.service.loadBalancerIP` if you need a static IP for the resulting `LoadBalancer`.

charts/ingress-nginx/README.md.gotmpl

@@ -140,8 +140,10 @@ controller:
     internal:
       enabled: true
       annotations:
-        # Create internal ELB
-        service.beta.kubernetes.io/aws-load-balancer-internal: "true"
+        # Create internal NLB
+        service.beta.kubernetes.io/aws-load-balancer-scheme: "internet-facing"
+        # Create internal ELB(Deprecated)
+        # service.beta.kubernetes.io/aws-load-balancer-internal: "true"
         # Any other annotation can be declared here.
 ```
 
@@ -184,6 +186,8 @@ controller:
         # Any other annotation can be declared here.
 ```
 
+The load balancer annotations of more cloud service providers can be found: [Internal load balancer](https://kubernetes.io/docs/concepts/services-networking/service/#internal-load-balancer).
+
 An use case for this scenario is having a split-view DNS setup where the public zone CNAME records point to the external balancer URL while the private zone CNAME records point to the internal balancer URL. This way, you only need one ingress kubernetes object.
 
 Optionally you can set `controller.service.loadBalancerIP` if you need a static IP for the resulting `LoadBalancer`.