- OVH Provider
 - Tests
 - Documentations

add documentation for kube-ingress-aws-controller and RouteGroup
Signed-off-by: Sandor Szücs <sandor.szuecs@zalando.de>

Using EC2 Instance Roles to provide Route 53 permissions is overly
permissive and dangerous.  Emphasize using alternatives such
as EKS IAM Roles for Service Accounts, kiam, or kube2iam that
limit access to the ExternalDNS pod.

Making sure the records are created depends on different settings. Add the section about debugging.

Make registry txt usage more clear

Signed-off-by: Jakub Scholz <www@scholzj.com>

`Deployment` has been removed from `apiVersion: extensions/v1beta1`

See https://kubernetes.io/blog/2019/07/18/api-deprecations-in-1-16/